Top Secret Nuclear Arsenal: A secretive underground base that concealed the power to destroy nations, and a sprawling industrial relic clinging to the edge of an unforgiving waterfall. [S,AD]
Escape from Devil's Island: Claustrophobic prison cells that contain a story worthy of international acclaim, and a vast mountainside complex that held the power to change the world. [S,AD]
Disaster in the Desert: The desert town that faced a disaster of biblical proportions. Plus, vast coastal ruins that reveal a past once wiped from history. [S,AD]
The Valkyrie Assassin: The underground base with the power to destroy a nation, the site linked with an attempt to kill a dictator, and an ancient world discovered in the American wilderness. [S,AD]
Disaster in the Desert: The desert town that faced a disaster of biblical proportions. Plus, vast coastal ruins that reveal a past once wiped from history. [S,AD]
Buckner Building Alaska: A vast project in the wilderness of southern Alaska, and a landscape of confusing structures that represented a bold statement of Spain's plans for the future. [S,AD]
Jailhouse Rebellion: Exploring decaying remains of Old Essex County Jail in New Jersey, a facility that became a powder keg of injustice that was set to explode. [S,AD]
1936 Olympic Village Berlin: A pioneering complex marked by both glory and tragedy that's soon to be lost forever, and towering remains from an industrial age. [S,AD]
Buckner Building Alaska: A vast project in the wilderness of southern Alaska, and a landscape of confusing structures that represented a bold statement of Spain's plans for the future. [S,AD]
The Real Schindler's List: Exploring Schindler's Ark in the Czech Republic, a secret refuge in Europe's killing fields, and a lost Amazonian paradise deep in the Brazilian rainforest. [S,AD]
Behind the Berlin Wall Special: Ruins include a covert Communist base that hid Cold War submarines for Tito and the former HQ of the Soviet Army in East Germany. [S,AD]
Bannack USA: A sprawling Wild West ghost town sits peaceful and abandoned in Montana, USA, but is still haunted by tales of murder, corruption an buried treasure. [S,AD]
Behind the Berlin Wall Special: Ruins include a covert Communist base that hid Cold War submarines for Tito and the former HQ of the Soviet Army in East Germany. [S,AD]
Villa De Vecchi Rhodes: A formerly luxurious and strategic mountain-top villa on the island of Rhodes in the Mediterranean that's been ravaged by acts of revenge by locals since 1955. [S,AD]
Pyramiden Norway: A town with a supernatural atmosphere, a collection of imposing buildings in southern Australia, and the remains of curious-looking basins emerging from the waves. [S,AD]
Villa De Vecchi Rhodes: A formerly luxurious and strategic mountain-top villa on the island of Rhodes in the Mediterranean that's been ravaged by acts of revenge by locals since 1955. [S,AD]
Tunnel to the Underworld: A West Virginia town that fell victim to change when steam trains became obsolete and an underground complex in Italy that'd been abandoned for nearly 2,000 years. [S,AD]
Escobar's Ruin: A ruined compound on the edge of a peninsula in Colombia which was once home to a famous outlaw and the strange towers looming over red-tinted waters in a Portuguese landscape. [S,AD]
Tunnel to the Underworld: A West Virginia town that fell victim to change when steam trains became obsolete and an underground complex in Italy that'd been abandoned for nearly 2,000 years. [S,AD]
Bodie USA: Projects include a maze of tunnels filled with haunting remains beneath the streets of Paris and a formation of domed structures hovering over the waters off the Florida coastline. [S,AD]
The World's Strangest Ghost Town: A settlement in Argentina destroyed by floods, a town in the US that has been erased, and a Soviet dream-town that turned into a nuclear nightmare. [S,AD]
The Real Schindler's List: We explore Schindler's Ark in the Czech Republic, a secret refuge in Europe's killing fields, and a lost Amazonian paradise deep in the Brazilian rainforest. [S,AD]
Palace of Death (Aerotrain): A seemingly endless concrete line stretching through the French countryside, which sits as a monument to a discarded engineering advancement. [S,AD]
The World's Strangest Ghost Town: A settlement in Argentina destroyed by floods, a town in the US that has been erased, and a Soviet dream-town that turned into a nuclear nightmare. [S,AD]
Operation Just Cause: We explore Fort Amador, the site of an American invasion in Panama, and a grisly Polish facility that once caged members of a revolutionary movement. [S,AD]
A Ghost Town In Spain: A village ruin, pitted and scarred, a ghostly fleet of ships, a bridge to nowhere hidden in a forest and strange metal structures in a wood all feature. [S,AD]
England's Abandoned Village: Featured - A country village hiding a sad secret, a mysterious tower scarred by war, a town decaying in the desert and a railway deep beneath a city. [S,AD]
A Ghost Town In Spain: A village ruin, pitted and scarred, a ghostly fleet of ships, a bridge to nowhere hidden in a forest and strange metal structures in a wood all feature. [S,AD]
Germany's D-Day Fortress: A devastated cliff-top ruin, an extraordinary tall tower, a concrete structure stranded at sea and a heavy metal monster in a field all feature. [S,AD]
Hitler's Wonder Weapon Bunker: Hidden tunnels that saw a city prosper, a sunken wreck with a remarkable past, a concrete wartime dome and a mysterious cold war building all feature. [S,AD]
Germany's D-Day Fortress: A devastated cliff-top ruin, an extraordinary tall tower, a concrete structure stranded at sea and a heavy metal monster in a field all feature. [S,AD]
The Siege of Sarajevo: Concrete channels hidden in a mountaintop forest, a collapsing bridge, a marooned military base and the upright rusting carcass of ship are all featured. [S,AD]
Sabotage in the Mountains: The remarkable projects include a towering structure with an explosive past, a deserted cityscape, a mysterious top-secret facility and a vast Nazi construction. [S,AD]
The Siege of Sarajevo: Concrete channels hidden in a mountaintop forest, a collapsing bridge, a marooned military base and the upright rusting carcass of ship are all featured. [S,AD]
The Desert Ghost Fleet: The programme looks at a mysterious group of rusting ships stranded in an arid desert, and a monstrous defensive line on the snow-covered peaks of the Italian Alps. [S,AD]
The Underwater Prison: An abandoned prison beneath the water, a tunnel in the heart of a mountain, concrete towers hidden in the woods and a rusting coastal relic. [S,AD]
The Desert Ghost Fleet: The programme looks at a mysterious group of rusting ships stranded in an arid desert, and a monstrous defensive line on the snow-covered peaks of the Italian Alps. [S,AD]
Germany's Lost Warship: The Georg Thiele was a technological masterpiece, but now it is a shipwreck, lost to the sea after running aground during a naval battle in WWII. [S,AD]
Operation Just Cause: We explore Fort Amador, the site of an American invasion in Panama, and a grisly Polish facility that once caged members of a revolutionary movement. [S,AD]
Lost Highway In The Rainforest: Hidden in the Brazilian jungle is the Petrobras Viaduct, an extraordinary highway that seemingly leads nowhere. Who built it and why? [S,AD]
Germany's Lost Warship: The Georg Thiele was a technological masterpiece, but now it is a shipwreck, lost to the sea after running aground during a naval battle in WWII. [S,AD]
The Desert Pirates: We head to the Tunisian desert to explore a vast chain of ruins that once stood in the way of Allied Victory - until a band of rogue heroes uncovered their weakness. [S,AD]
The Abandoned Nazi Railway: The Canfranc Railway Station is a large and elaborate abandoned Nazi railway station in the Spanish Pyrenees. Why was it built? [S,AD]
America's Jungle City: Henry Ford's Fordlandia Rubber Town has been left to rot in the Amazon Rainforest, but it was once a symbol of the American dream. [S,AD]
The Abandoned Nazi Railway: The Canfranc Railway Station is a large and elaborate abandoned Nazi railway station in the Spanish Pyrenees. Why was it built? [S,AD]
The Italian Dam Disaster: Hear the fateful story of the disused Vajont Dam in Italy, the site of a tragic disaster in 1963 which resulted in the deaths of around 2,000 people. [S,AD]
Battle of Britain Technology Facility: Learn about the strange-looking, derelict military facilities in Farnborough, which were once wind tunnels that played a vital role in WWII. [S,AD]
The Italian Dam Disaster: Hear the fateful story of the disused Vajont Dam in Italy, the site of a tragic disaster in 1963 which resulted in the deaths of around 2,000 people. [S,AD]