At Monster Jam, custom-built monster trucks roll, flip, and fly through the air. With the metal-bending beating these trucks endure, teams of specialized mechanics race against the clock to repair these engineering marvels in time for the next event.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A different view of the events in the Arctic during World War II, with countless unknown details; a focus on the struggle of the great powers for control of the area and its natural resources.

The Navy's U.S.S. Macon flew in the 1930's, the golden age of airships, and was able to both launch and recover airplanes; telling the lost story of America's airships, their rapid rise, tragic demise, and the bold experiments in between.

At Monster Jam, custom-built monster trucks roll, flip, and fly through the air. With the metal-bending beating these trucks endure, teams of specialized mechanics race against the clock to repair these engineering marvels in time for the next event.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A different view of the events in the Arctic during World War II, with countless unknown details; a focus on the struggle of the great powers for control of the area and its natural resources.

Studies are currently under way looking for evidence of dark energy in the movement of galaxies.

Lunar and solar eclipses.

Bill Nighy leads a magical journey in the Norfolk Broads along England's holiday river, the River Bure; discovering a watery world where both wildlife and recreation go hand in hand.

Retracing the steps of a German U-boat that's willing to do anything to replace its dwindling fuel and food stores, and get back to port; examining how the crew, plagued by scurvy, turns the tables on the US submarines that try to ram their ship.

A US sub shows unbelievable courage in the face of impossible odds. A look into how a bomb dropped by the Japanese forces pushes the craft into a deadly dive, and ignites a toxic chemical fire that leaves the crew fighting for their lives.

A look at the failures that forced a US submarine commander to rebuild his crew's trust, one person at a time; discovering how this commanding officer overcame dissent on board and refocused on targeting enemy ships in dangerous Japanese waters.

A remote island linked to one of the world's most famous aviation mysteries; thousands of shipwrecks in the Bermuda triangle; a history lost and found in the South Pacific; a 10,000-year-old mystery in the murky depths of the Yucatan Peninsula.

Three American heiresses become leading ladies in England: Nancy Astor, Nancy Lancaster and Pauline de Rothschild.

Investigating whether the pharaoh who ordered the building of the Great Pyramid of Giza was really the tyrant he was said to be.

An unprecedented journey through New Zealand with Phil Keoghan; from helicopters and hot air balloons to sailboats and a WWI plane.

Three American heiresses become leading ladies in England: Nancy Astor, Nancy Lancaster and Pauline de Rothschild.

Investigating whether the pharaoh who ordered the building of the Great Pyramid of Giza was really the tyrant he was said to be.

Investigate the costs of Hitler's Soviet invasion, which aims to give the Nazis control over a key nickel mine and a transportation hub; seeing how this summer battle turns into a bitter winter war as the Allies tighten their grip on the Arctic.

At Monster Jam, custom-built monster trucks roll, flip, and fly through the air. With the metal-bending beating these trucks endure, teams of specialized mechanics race against the clock to repair these engineering marvels in time for the next event.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

The excavation unearths new finds; Miami University professor Steven Tuck joins the team to look for evidence of Pompeiians who may have survived the eruption of AD 79.

The Agoojj are a small fighting force of women in West Africa that expands in the 17th century against the much larger Asante and Yoruba Kingdoms; this all-female regiment terrifies both the local populations and the Europeans sent to conquer them.

New evidence found in Egyptian sacred sites is revealing secrets about a forgotten succession of powerful female priests.

The excavation unearths new finds; Miami University professor Steven Tuck joins the team to look for evidence of Pompeiians who may have survived the eruption of AD 79.

The Agoojj are a small fighting force of women in West Africa that expands in the 17th century against the much larger Asante and Yoruba Kingdoms; this all-female regiment terrifies both the local populations and the Europeans sent to conquer them.

New evidence found in Egyptian sacred sites is revealing secrets about a forgotten succession of powerful female priests.

A remote island linked to one of the world's most famous aviation mysteries; thousands of shipwrecks in the Bermuda triangle; a history lost and found in the South Pacific; a 10,000-year-old mystery in the murky depths of the Yucatan Peninsula.

The excavation unearths new finds; Miami University professor Steven Tuck joins the team to look for evidence of Pompeiians who may have survived the eruption of AD 79.

The Agoojj are a small fighting force of women in West Africa that expands in the 17th century against the much larger Asante and Yoruba Kingdoms; this all-female regiment terrifies both the local populations and the Europeans sent to conquer them.

New evidence found in Egyptian sacred sites is revealing secrets about a forgotten succession of powerful female priests.

An exploration of the astrophysics of stars creating matter.

An exploration of the science behind the Anthropic Principle.

Traveling the Dordogne River via traditional boats through the green heart of southwest France; drinking wine and hunting for truffles; riding a luxury cruiser to a lighthouse built for a king.

An American submarine crew gets an order: to hunt Japanese ships that are conducting a secret VIP evacuation in the Philippines in June 1945; examining the stealthy, dangerous tactics they used that would set a US Navy record.

U.S. paratroopers that dropped into France before the D-Day landings battle Nazi defenders for a key bridge behind enemy lines.

Five months after D-Day, the ground war finally arrives on German soil as British soldiers attack in the shadow of Hitler's infamous Siegfried Line.

When seen from above, the pyramids of Giza align with the stars; survivors of Katrina find rescue when least expected; a volcano burns bright blue; a forgotten beach reveals its secrets.

A new raven breeding program begins at the Tower of London as the retiring governor prepares to commemorate Queen Elizabeth's 93rd birthday.

Exploring the final building phase of the Great Pyramid of Giza and the rituals that took place after a pharaoh dies.

An unprecedented look at the world's most famous aircraft: how it was born, how it has developed over the years, and the role it has played in historic events.

A new raven breeding program begins at the Tower of London as the retiring governor prepares to commemorate Queen Elizabeth's 93rd birthday.

Exploring the final building phase of the Great Pyramid of Giza and the rituals that took place after a pharaoh dies.

Allied forces move to take the valuable islands of Tinian and Guam that threaten American air operations; meanwhile, Gen. Curtis LeMay is tasked with planning and executing a fire bombing campaign against Japan.

The excavation unearths new finds; Miami University professor Steven Tuck joins the team to look for evidence of Pompeiians who may have survived the eruption of AD 79.

New evidence found in Egyptian sacred sites is revealing secrets about a forgotten succession of powerful female priests.

A terrifying sea fortress, a highway in the Amazon that suddenly vanishes, and a mysterious structure in the shadow of the Statue of Liberty are deserted engineering projects; discoveries reveal how they were built and why they were abandoned.

Drones reveal what's left of Henry Ford's American suburb in the Brazilian jungle; looking for clues to what killed a once-vibrant Pennsylvania mining town; an aerial glimpse of New York's forgotten ghost town; an Italian Renaissance reduced to dust.

The ancient necropolis of Abusir contains strange megastructures unlike any discovered in Egypt; experts gain rare access to investigate lost tombs and forgotten rituals to reveal the secrets of Egypt's Sun Cult pharaohs.

A terrifying sea fortress, a highway in the Amazon that suddenly vanishes, and a mysterious structure in the shadow of the Statue of Liberty are deserted engineering projects; discoveries reveal how they were built and why they were abandoned.

Drones reveal what's left of Henry Ford's American suburb in the Brazilian jungle; looking for clues to what killed a once-vibrant Pennsylvania mining town; an aerial glimpse of New York's forgotten ghost town; an Italian Renaissance reduced to dust.

The ancient necropolis of Abusir contains strange megastructures unlike any discovered in Egypt; experts gain rare access to investigate lost tombs and forgotten rituals to reveal the secrets of Egypt's Sun Cult pharaohs.

When seen from above, the pyramids of Giza align with the stars; survivors of Katrina find rescue when least expected; a volcano burns bright blue; a forgotten beach reveals its secrets.

A terrifying sea fortress, a highway in the Amazon that suddenly vanishes, and a mysterious structure in the shadow of the Statue of Liberty are deserted engineering projects; discoveries reveal how they were built and why they were abandoned.

Drones reveal what's left of Henry Ford's American suburb in the Brazilian jungle; looking for clues to what killed a once-vibrant Pennsylvania mining town; an aerial glimpse of New York's forgotten ghost town; an Italian Renaissance reduced to dust.

The ancient necropolis of Abusir contains strange megastructures unlike any discovered in Egypt; experts gain rare access to investigate lost tombs and forgotten rituals to reveal the secrets of Egypt's Sun Cult pharaohs.

Isaac Brock's daring made him a hero, but may also be his flaw.

Charles de Salaberry is forced to rely on cunning tactics.

A journey down Spain's Guadalquivir River, from the high Sierra de Cazorla down to Andalusia; passing through Cordoba and Seville, following the footsteps of Columbus and Magellan.

A platoon of American Buffalo Soldiers exceeds all expectations to advance on a Nazi-occupied castle in the foothills of Northern Italy.

With thousands of German soldiers trapped in the Falaise Pocket, a small Canadian tank squadron tries to close off the escape route.

A U.S. Parachute Infantry Regiment rushes to protect a critical bridge from a Nazi battle group during the opening days of the Battle of the Bulge.

Strange aquatic mammals populating a river in Columbia; a ship marooned in a sea of sand along Namibia's notorious Skeleton Coast; a Boeing 727 jetliner hidden in a pine forest; an unusual pattern is discovered in the Nevada desert.

A behind-the-scenes look at an ambitious war commemoration and retirement gala; a look back at the Tower's vital role during times of war.

Egyptologists try to determine who built the Sphinx and why by exploring the power struggles between Khufu's sons after the pharaoh's death.

Investigators try to determine what caused a routine commuter flight to crash.

A behind-the-scenes look at an ambitious war commemoration and retirement gala; a look back at the Tower's vital role during times of war.

Egyptologists try to determine who built the Sphinx and why by exploring the power struggles between Khufu's sons after the pharaoh's death.

Allies slug it out on the island of Peleliu in a campaign to pave the way for Gen. MacArthur's return to the Philippines; footage shows troops enduring the muddy muck in the Philippines; Japan unveils a devastating new tactic, the kamikaze.

Drones reveal what's left of Henry Ford's American suburb in the Brazilian jungle; looking for clues to what killed a once-vibrant Pennsylvania mining town; an aerial glimpse of New York's forgotten ghost town; an Italian Renaissance reduced to dust.

The ancient necropolis of Abusir contains strange megastructures unlike any discovered in Egypt; experts gain rare access to investigate lost tombs and forgotten rituals to reveal the secrets of Egypt's Sun Cult pharaohs.

The terrorist attack on Charlie Hebdo and Paris in January 2015.

First-hand accounts, re-creations and expert interviews of D-Day in 1944, where the Allied Forces of Britain, America, Canada and France attacked German forces on the coast of Normandy, France.

U.S. paratroopers that dropped into France before the D-Day landings battle Nazi defenders for a key bridge behind enemy lines.

The terrorist attack on Charlie Hebdo and Paris in January 2015.

First-hand accounts, re-creations and expert interviews of D-Day in 1944, where the Allied Forces of Britain, America, Canada and France attacked German forces on the coast of Normandy, France.

U.S. paratroopers that dropped into France before the D-Day landings battle Nazi defenders for a key bridge behind enemy lines.

Strange aquatic mammals populating a river in Columbia; a ship marooned in a sea of sand along Namibia's notorious Skeleton Coast; a Boeing 727 jetliner hidden in a pine forest; an unusual pattern is discovered in the Nevada desert.

The terrorist attack on Charlie Hebdo and Paris in January 2015.

First-hand accounts, re-creations and expert interviews of D-Day in 1944, where the Allied Forces of Britain, America, Canada and France attacked German forces on the coast of Normandy, France.

U.S. paratroopers that dropped into France before the D-Day landings battle Nazi defenders for a key bridge behind enemy lines.

With her husband wounded, Laura Secord sets out to warn the British of a possible American attack.

Tecumseh forges an alliance with the British in pursuit of his dream.

Discover the stories of six epic river journeys via the fascinating characters who live and work on and around the water.

Blinded in one eye in the battle for Normandy, a defiant French-Canadian sniper sets out to liberate a Dutch city in the final days of the war.

After the landing on Normandy Beach, the Battle of Carentan breaks out and an American unit launches a desperate bayonet charge.

After months of fighting in Europe, U.S. troops finally enter Germany; with their sights set on the city of Aachen, the Americans must break through two rows of bunker fortifications to capture the old capital.

An underwater discovery from a violent past; strange open ocean spirals off the coast of Australia; a mysterious concrete ghost island; never-seen-before tracks discovered along the seabed.

Look at the opening acts of WW II as the Soviets launch their Winter War in Finland; see why the global media focused on the grim, snowy fighting while the Axis turned its eyes toward neighboring Norway and the rich mineral wealth of the north.

The German war industry urgently needs more iron; Hitler has his eye on the Norwegian coast and especially on the harbor of Narvik, through which iron ore is shipped from Sweden.

Investigate the costs of Hitler's Soviet invasion, which aims to give the Nazis control over a key nickel mine and a transportation hub; seeing how this summer battle turns into a bitter winter war as the Allies tighten their grip on the Arctic.

Allied forces move to take the valuable islands of Tinian and Guam that threaten American air operations; meanwhile, Gen. Curtis LeMay is tasked with planning and executing a fire bombing campaign against Japan.

Allies slug it out on the island of Peleliu in a campaign to pave the way for Gen. MacArthur's return to the Philippines; footage shows troops enduring the muddy muck in the Philippines; Japan unveils a devastating new tactic, the kamikaze.

The terrorist attack on Charlie Hebdo and Paris in January 2015.

First-hand accounts, re-creations and expert interviews of D-Day in 1944, where the Allied Forces of Britain, America, Canada and France attacked German forces on the coast of Normandy, France.

Consider the factors that inevitably cause dictatorships to crumble; look at how hubris destroys cults of personality; see how factions fracture military dictatorships; weigh the miscalculations that turn the tide against tyranny.

Between 1940 and 1942, the Axis powers unleash over 3,000 bombing raids on Malta, an island key to controlling the southern coast of the Mediterranean; Conflict archeologists use cutting-edge drone technology to explore the defenses of Malta.

A different view of the events in the Arctic during World War II, with countless unknown details; a focus on the struggle of the great powers for control of the area and its natural resources.

Allied convoys resupplying the Soviet Union navigate the Arctic, infested with U-boats and enemy aircraft.

Between 1940 and 1942, the Axis powers unleash over 3,000 bombing raids on Malta, an island key to controlling the southern coast of the Mediterranean; Conflict archeologists use cutting-edge drone technology to explore the defenses of Malta.

A different view of the events in the Arctic during World War II, with countless unknown details; a focus on the struggle of the great powers for control of the area and its natural resources.

Allied convoys resupplying the Soviet Union navigate the Arctic, infested with U-boats and enemy aircraft.

An underwater discovery from a violent past; strange open ocean spirals off the coast of Australia; a mysterious concrete ghost island; never-seen-before tracks discovered along the seabed.

Between 1940 and 1942, the Axis powers unleash over 3,000 bombing raids on Malta, an island key to controlling the southern coast of the Mediterranean; Conflict archeologists use cutting-edge drone technology to explore the defenses of Malta.

A different view of the events in the Arctic during World War II, with countless unknown details; a focus on the struggle of the great powers for control of the area and its natural resources.

Allied convoys resupplying the Soviet Union navigate the Arctic, infested with U-boats and enemy aircraft.

John Norton leads Six Nations warriors against the invading Americans.

East coast shipper creates a private fleet to seize American ships.

Rumoured to be the cleanest river in Europe, few dispute it's the coldest; cascading down from the Dinaric Alps in Serbia, it soon crosses the border into Bosnia Herzegovina, where marine biologist and fisherman Sanel Riđanović casts for salmon.

A Japanese American regiment fights through darkened forests, heavy rains and entrenched Nazis to reach a lost U.S. battalion in the Vosges Mountains.

During the Battle of the Bulge, a young U.S. scout gets trapped behind enemy lines.

A United States army cook manages to stall Himmler's attempt to recapture Strasbourg.

Revealing the truth behind the planet's ancient legends; touring an island covered in polar bears, twin craters in Greece, peeking at a supervolcano hidden under Yellowstone Park and examining an ocean formation that's eerily similar to Atlantis.

The story of the construction of ancient Egypt's first pyramid, built 4,700 years ago to help the Pharaoh Djoser achieve immortality.

Exploring how Pharaoh Snefru shifted the pyramid age into high gear by ordering three massive monuments.

Investigating whether the pharaoh who ordered the building of the Great Pyramid of Giza was really the tyrant he was said to be.

Exploring the final building phase of the Great Pyramid of Giza and the rituals that took place after a pharaoh dies.

Egyptologists try to determine who built the Sphinx and why by exploring the power struggles between Khufu's sons after the pharaoh's death.

Between 1940 and 1942, the Axis powers unleash over 3,000 bombing raids on Malta, an island key to controlling the southern coast of the Mediterranean; Conflict archeologists use cutting-edge drone technology to explore the defenses of Malta.

A different view of the events in the Arctic during World War II, with countless unknown details; a focus on the struggle of the great powers for control of the area and its natural resources.

Allied convoys resupplying the Soviet Union navigate the Arctic, infested with U-boats and enemy aircraft.

An engine fault threatens to ground an airliner, scientists and pilots team up to protect cattle from lion attack, damaged runway lights plunge a busy airport into darkness, and South Africa's top aerial display team wows crowds.

Mike is in Iceland, where teams harness the power of volcanos to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes. and bringing a dead well back to life.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

An engine fault threatens to ground an airliner, scientists and pilots team up to protect cattle from lion attack, damaged runway lights plunge a busy airport into darkness, and South Africa's top aerial display team wows crowds.

Mike is in Iceland, where teams harness the power of volcanos to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes. and bringing a dead well back to life.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

Revealing the truth behind the planet's ancient legends; touring an island covered in polar bears, twin craters in Greece, peeking at a supervolcano hidden under Yellowstone Park and examining an ocean formation that's eerily similar to Atlantis.

An engine fault threatens to ground an airliner, scientists and pilots team up to protect cattle from lion attack, damaged runway lights plunge a busy airport into darkness, and South Africa's top aerial display team wows crowds.

Mike is in Iceland, where teams harness the power of volcanos to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes. and bringing a dead well back to life.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

The Grasslands National Park protects the North American mixed grass prairie.

Despite being the second smallest park in Canada, Point Pelee bird watching reputation is huge.

Tackling the grade 6 rapids and untamed waters of the Buller River on the west coast of New Zealand's South Island, blessed by a Māori elder of the Ngāti Apa ki te Rā Tō.

A platoon of Canadian tank hunters engages a column of Nazi Panther tanks at nighttime.

In July of 1944, French resistance fighters called Maquisards declare a Free French Republic on the remote Vercors plateau in eastern France to support the Allied invasion of Normandy.

In August 1944, when Hitler launches Operation Lüttich to retake the port city of Avranches, German panzer and SS troops quickly overrun the French town of Mortain and encircle a battalion of US soldiers who hold the high ground on Hill 314.

Walking among colossal wonders scattered across the Earth's surface, including an ancient reptile skeleton, a massive head carving in the Alberta badlands, a giant South African footprint, and a pentagram etched into a remote peninsula in Kazakhstan.

As the official home of the Crown Jewels and other royal regalia, the Tower is the nation's most famous safe, but its security hasn't been airtight; curators hunt for King Henry VIII's crown and Queen Elizabeth I's last dress.

Tallying the carnage that followed the disappearance of a Russian wonder; exploring Incan sacrificial rituals; studying a global rivalry sparked by an Egyptian stone; seeing the haunting paintings of a Spanish artist who descended into madness.

Two crashed Cessnas baffle investigators.

As the official home of the Crown Jewels and other royal regalia, the Tower is the nation's most famous safe, but its security hasn't been airtight; curators hunt for King Henry VIII's crown and Queen Elizabeth I's last dress.

Tallying the carnage that followed the disappearance of a Russian wonder; exploring Incan sacrificial rituals; studying a global rivalry sparked by an Egyptian stone; seeing the haunting paintings of a Spanish artist who descended into madness.

The scale of World War II grows as the United States joins the war; explore the operations where Allied commando troops raid the Norwegian coast.

A terrifying sea fortress, a highway in the Amazon that suddenly vanishes, and a mysterious structure in the shadow of the Statue of Liberty are deserted engineering projects; discoveries reveal how they were built and why they were abandoned.

The Agoojj are a small fighting force of women in West Africa that expands in the 17th century against the much larger Asante and Yoruba Kingdoms; this all-female regiment terrifies both the local populations and the Europeans sent to conquer them.

An aerial tour of northern Greece explores Mount Olympus, Macedonia, the island of Corfu and more; the lifestyles of the region's inhabitants.

Thanksgiving weekend and severe storms challenge the staff at Ted Stevens Airport with heavy traffic, heavy snow, and even a lightning strike.

A helicopter security team flees extreme weather. A bush pilot faces a test that will determine his aviation future. UN aviators fly emergency missions over Madagascar, and vets take to the skies for a flight to save the Black Rhino from extinction.

An aerial tour of northern Greece explores Mount Olympus, Macedonia, the island of Corfu and more; the lifestyles of the region's inhabitants.

Thanksgiving weekend and severe storms challenge the staff at Ted Stevens Airport with heavy traffic, heavy snow, and even a lightning strike.

A helicopter security team flees extreme weather. A bush pilot faces a test that will determine his aviation future. UN aviators fly emergency missions over Madagascar, and vets take to the skies for a flight to save the Black Rhino from extinction.

Walking among colossal wonders scattered across the Earth's surface, including an ancient reptile skeleton, a massive head carving in the Alberta badlands, a giant South African footprint, and a pentagram etched into a remote peninsula in Kazakhstan.

An aerial tour of northern Greece explores Mount Olympus, Macedonia, the island of Corfu and more; the lifestyles of the region's inhabitants.

Thanksgiving weekend and severe storms challenge the staff at Ted Stevens Airport with heavy traffic, heavy snow, and even a lightning strike.

A helicopter security team flees extreme weather. A bush pilot faces a test that will determine his aviation future. UN aviators fly emergency missions over Madagascar, and vets take to the skies for a flight to save the Black Rhino from extinction.

The civilization of the first and finest national park in Canada, is surrounded by untamed wildlife.

The Bruce Peninsula is the largest natural landscape remaining in Southern Ontario.

Escape with us on a thrilling journey down the river that forged North America ... the St. Lawrence. From the grandeur of the Great Lakes to the picturesque 1000 Islands and through the vibrant, historic cities of Montreal and Quebec. Past rugged landscapes and into the world's largest estuary. To sailors, kayakers and whale watchers the river is part playground, part paradise. Sailing by castles, diving for shipwrecks and rowing the open water.

In the autumn of 1944, Patton's Third Army approaches the heavily fortified region of Metz; after being turned back from Fort Driant, Patton's men target Fort Koenigsmacker a month later.

In February 1945, Allied forces lead an attack out of the Netherlands and onto German soil west of the Rhine; a Canadian battalion administrator must assume command of a company and lead it into battle.

When his company attempts to capture a small village, an American soldier, born in Mexico but raised in Texas, must crawl through an enemy minefield to capture two German machine gun nests holding up his unit.

The discovery of an underground haven used by World War I soldiers.

A look at how the Tower closes up for the night, what happens after dark, and a look at a daring 16th century prison break.

Unraveling centuries of bloodshed and avarice surrounding an unlucky Indian jewel; exploring a car where a Hollywood star met an untimely death; assessing the violent end of an English king's legacy and an ominous Assyrian curse etched in stone.

Investigators determine why a plane crashes on Alaska's Kenai Peninsula.

A look at how the Tower closes up for the night, what happens after dark, and a look at a daring 16th century prison break.

Unraveling centuries of bloodshed and avarice surrounding an unlucky Indian jewel; exploring a car where a Hollywood star met an untimely death; assessing the violent end of an English king's legacy and an ominous Assyrian curse etched in stone.

The Allies plan their landing in Normandy and devise a diversionary operation in the north; commando attacks continue and the resistance becomes more active; Hitler continues his building projects.

Thanksgiving weekend and severe storms challenge the staff at Ted Stevens Airport with heavy traffic, heavy snow, and even a lightning strike.

A helicopter security team flees extreme weather. A bush pilot faces a test that will determine his aviation future. UN aviators fly emergency missions over Madagascar, and vets take to the skies for a flight to save the Black Rhino from extinction.

Mike is in Iceland, where teams harness the power of volcanos to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes. and bringing a dead well back to life.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

A different view of the events in the Arctic during World War II, with countless unknown details; a focus on the struggle of the great powers for control of the area and its natural resources.

Mike is in Iceland, where teams harness the power of volcanos to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes. and bringing a dead well back to life.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

A different view of the events in the Arctic during World War II, with countless unknown details; a focus on the struggle of the great powers for control of the area and its natural resources.

The discovery of an underground haven used by World War I soldiers.

Mike is in Iceland, where teams harness the power of volcanos to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes. and bringing a dead well back to life.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

A different view of the events in the Arctic during World War II, with countless unknown details; a focus on the struggle of the great powers for control of the area and its natural resources.

The Pacific Rim National Park Reserve is one of Canada's most beautiful and powerful parks.

This oldest National Park in the Canadian Maritimes is home to the highest density of moose in the world.

Navigating the historic Potomac River from West Virginia to Chesapeake Bay, passing through Washington, D.C. and the national monuments and ending at George Washington's Mount Vernon estate.

An American 2nd lieutenant sends his company back during an enemy counterattack during the Allied bid to clear the Colmar Pocket; he tries to hold off the German soldiers with his carbine rifle and calling in artillery but runs out of bullets.

Six of the country's top artists travel to Somerled Farm to create their own rendition of this quintessential Canadian view; contestants are given fours hours to create a landscape masterpiece.

A new batch of artists travel to Cobourg Marina to create a landscape masterpiece of this famous Canadian view, but a busy marina proves to be a challenging subject.

Traipsing along ancient pathways criss-crossing Easter Island; finding gigantic designs carved into Asia's Eastern Steppe; ascending a tall pyramid rising from Antarctica's icy landscape.

A look at Henry VIII through the eyes of the men around him; from advisors to painters and physicians, these are the men who shaped the king's perspective.

Uncovers the origins of the curses surrounding the Fabergé eggs, the Unlucky Mummy and more in a historical journey from revolutionary Russia to Ancient Egypt.

A mystery emerges after a single-engine floatplane crashes.

A look at Henry VIII through the eyes of the men around him; from advisors to painters and physicians, these are the men who shaped the king's perspective.

Uncovers the origins of the curses surrounding the Fabergé eggs, the Unlucky Mummy and more in a historical journey from revolutionary Russia to Ancient Egypt.

The Germans begin a retreat on the eve of the polar winter; the Soviet Union begins a major offensive in the north; the Finns push the Germans towards their defensive line.

Mike is in Iceland, where teams harness the power of volcanos to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes. and bringing a dead well back to life.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

The archaeologists complete the excavation of a wealthy residence, bakery and laundry, discovering details about what people were doing in the city during its final hours.

The tragic story of Archduke Maximilian and the series of unfortunate circumstances that doomed his reign over Mexico.

Investigate one of Egypt's oldest monuments to eternity: the Buried Pyramid of Sekhemkhet; explore a well-preserved underground tomb and view a mysterious sarcophagus during the first-ever on-camera exploration of this 4,500-year-old sacred place.

The archaeologists complete the excavation of a wealthy residence, bakery and laundry, discovering details about what people were doing in the city during its final hours.

The tragic story of Archduke Maximilian and the series of unfortunate circumstances that doomed his reign over Mexico.

Investigate one of Egypt's oldest monuments to eternity: the Buried Pyramid of Sekhemkhet; explore a well-preserved underground tomb and view a mysterious sarcophagus during the first-ever on-camera exploration of this 4,500-year-old sacred place.

Traipsing along ancient pathways criss-crossing Easter Island; finding gigantic designs carved into Asia's Eastern Steppe; ascending a tall pyramid rising from Antarctica's icy landscape.

The archaeologists complete the excavation of a wealthy residence, bakery and laundry, discovering details about what people were doing in the city during its final hours.

The tragic story of Archduke Maximilian and the series of unfortunate circumstances that doomed his reign over Mexico.

Investigate one of Egypt's oldest monuments to eternity: the Buried Pyramid of Sekhemkhet; explore a well-preserved underground tomb and view a mysterious sarcophagus during the first-ever on-camera exploration of this 4,500-year-old sacred place.

The Torngat Mountains National Park was set up in part to return the aboriginal people to their birthright.

Riding Mountain National Park in Manitoba.

In 1587, more than 100 English colonists who were settled on Roanoke Island vanish, baffling historians for centuries; experts use forensic archaeology to investigate the true story behind one of America's oldest mysteries.

A new batch of the country's top artists must capture their version of a gritty industrial landscape; with only four hours, and ever changing weather conditions, the artists are pushed to their limits.

Seven top artists travel to stunning Lake Rosseau for their final four-hour painting showdown for the $10,000 grand prize.

Salvor and treasure seeker Phil Risko sets out to retrieve valuable 80-year-old hardwood logs from the bottom of the sea; a multi-million dollar cruise vessel undergoes emergency repairs in Panama.

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

Henry VIII entrusted vast power to the men around him.

Delving into the tragic sacking of the Kingdom of Benin and seeing if its ruins harbor bad luck; evaluating an unlucky Norwegian artist's paintings, an Egyptian portrait with a dark history, and stolen Lydian treasure that carries ancient ill will.

A trip goes wrong when a pilot's Piper Super Cub crashes into a treacherous waterway.

Henry VIII entrusted vast power to the men around him.

Delving into the tragic sacking of the Kingdom of Benin and seeing if its ruins harbor bad luck; evaluating an unlucky Norwegian artist's paintings, an Egyptian portrait with a dark history, and stolen Lydian treasure that carries ancient ill will.

Hitler's final days are revealed through recently discovered eyewitness accounts.

The archaeologists complete the excavation of a wealthy residence, bakery and laundry, discovering details about what people were doing in the city during its final hours.

Investigate one of Egypt's oldest monuments to eternity: the Buried Pyramid of Sekhemkhet; explore a well-preserved underground tomb and view a mysterious sarcophagus during the first-ever on-camera exploration of this 4,500-year-old sacred place.

Eerie ghost ships stranded in an alien desert, sinister ruins known as the Dragon's Teeth, and a ghostly complex with a bloody past are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

As seen from space, a crater in Turkmenistan, is on fire; drones reveal perfect circles in the Namibian desert; A puzzle is solved by a World War 2 code breaker; Mystery of Death Valley's self-moving stones; Utah's strange electric blue ponds.

Nearly a decade after the ancient site of Nimrud was destroyed by terrorists, experts return to salvage the wreckage; archaeologists piece together the remaining ruins to reveal the origins and brutal decline of a lost empire.

Eerie ghost ships stranded in an alien desert, sinister ruins known as the Dragon's Teeth, and a ghostly complex with a bloody past are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

As seen from space, a crater in Turkmenistan, is on fire; drones reveal perfect circles in the Namibian desert; A puzzle is solved by a World War 2 code breaker; Mystery of Death Valley's self-moving stones; Utah's strange electric blue ponds.

Nearly a decade after the ancient site of Nimrud was destroyed by terrorists, experts return to salvage the wreckage; archaeologists piece together the remaining ruins to reveal the origins and brutal decline of a lost empire.

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

Eerie ghost ships stranded in an alien desert, sinister ruins known as the Dragon's Teeth, and a ghostly complex with a bloody past are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

As seen from space, a crater in Turkmenistan, is on fire; drones reveal perfect circles in the Namibian desert; A puzzle is solved by a World War 2 code breaker; Mystery of Death Valley's self-moving stones; Utah's strange electric blue ponds.

Nearly a decade after the ancient site of Nimrud was destroyed by terrorists, experts return to salvage the wreckage; archaeologists piece together the remaining ruins to reveal the origins and brutal decline of a lost empire.

Fundy National Park in southern New Brunswick.

Terra Nova National Park on the Newfoundland coast is a beautiful enigma with a rugged forest.

In 1587, more than 100 English colonists settle on Roanoke Island and soon vanish, baffling historians for centuries; now, experts use the latest forensic archaeology to investigate the true story behind America's oldest, most controversial mystery.

Responding to an emergency call, Northstar marine sets out to salvage a sunken tug in the Delaware Bay; following the devastation caused by Hurricane Sally, Capt. Chris Ward and his crew work to salvage sunken sailboats and wrecked powerboats.

A mysterious pyramid built out of Cold War paranoia; a haunted prison; a cluster of structures in the Atlantic; the mystery of a secret structure on a mountain and an industrial compound are revealed.

Traces of a Russian hole to hell in the Arctic, a military base in America's wild west, and a strange looming tower are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A Russian hole to hell in the Arctic; a military base in America's Wild West; a strange, looming tower; the mystery of an abandoned alien Nazi structure and a Soviet monolith are revealed.

A secret Russian military base in the Gobi Desert; a strange complex in an American wasteland; a relic high atop a mountain.

The coliseums of Rome were brutal theaters of spectacle and death that helped control the sprawling Roman empire; now, archaeologists uncover the engineering secrets behind these majestic structures to reveal the truth behind the ancient Roman world.

The Red Pyramid at Dahshur is a revolutionary megastructure and the first true pyramid ever constructed in ancient Egypt; experts investigate to reveal the pharaoh who built it and the mystery behind it's trailblazing design.

Recently unearthed mummies may help solve the enduring mystery of why Pompeii was built on an active volcano; archaeologists explore the secrets of an ancient Roman town perfectly preserved after the devastating eruption of Mount Vesuvius.

Hadrian's Villa is the largest Roman palace ever constructed and demonstrates the opulent peak of Rome's ancient engineering; experts investigate secrets that could reveal the truth behind one of Rome's most enigmatic emperors.

Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air.

Peek at landmarks in places where they shouldn't be. Wing your way over an imperial pyramid in the Netherlands, a massive metal sphere in remote Russia, a lion shape carved into an English hillside, and a bare swath cut through an Austrian forest.

Confront objects that make no sense; spot a spinning island in an Argentinian marsh, a colossal triangle stuck in the Arizona desert, mysterious multicoloured pools across northern Ethiopia and a huge human figure hidden in the Australian outback.