The Rediscovery of Archaeopolis: Exploring a country estate in Ireland where family divisions reflected a national struggle and was caught in the crossfire. [S,AD]
The True Cross: Exploring Old Byron Hot Springs in the Californian desert - a once glittering Hollywood hotspot, converted into a top-secret interrogation centre. [S,AD]
Penthouse Palace: Exploring Haludovo Palace Hotel in Croatia, Wolf's Lair, a German military complex and Herouni Mirror Radio Telescope - a pioneering facility in Armenia. [S,AD]
Rock 'N' Roll Island: Exploring Air Studios, on the Island of Montserrat, that became a mecca for rock legends. Also Tskaltubo, in Georgia, built to host a fearsome dictator. [S,AD]
The Drop: Exploring the Dew Drop Inn in New Orleans, a music mecca that dared to take on the authorities and paid the price, and Belgica Fort, built to defend an unlikely treasure. [S,AD]
An American Exodus: Exploring a decrepit Liberian landmark with American origins, a desolate town in Belgium and a pioneering scientific structure in Cleveland. [S,AD]
Castle Of The Occult: Exploring a dense forest near the Czech capital of Prague that hides Houska Castle, an eerie castle rumoured to possess supernatural powers. [S,AD]
Rock And Ruin: Exploring traces of a mass deception hidden at Ponte Dirillo in Italy, as well as a once lavish theatre in Ohio and an ancient city with a poisonous secret. [S,AD]
Cowboy Mountain: Exploring the remains of an ingenious sky-high solution to a ground-based problem, Chiatura, once know as the Venice of the air. [S,AD]
Raiders & Invaders: Exploring Oradour-sur-Glane, a French town drenched in infamy. Also, Alcatraz, a facility famed for breakouts but also subjected to a daring break-in. [S,AD]
Niagara's Hidden Marvel: Exploring a royal retreat caught in a web of corruption, an engineering marvel hidden behind the Niagara Falls in Canada, and a subterranean treasure. [S,AD]
Treasures to Die For: Exploring Hartwood, a haunting facility in Scotland, ruins of an ancient city in Iraq and a scandal hit town in New Mexico. [S,AD]
Ancient Encounter: Exploring a picturesque French castle, the ruins of a Kansas City hospital, an ancient Turkish city, and an island in Ireland that brought its inhabitants closer to God. [S,AD]
Tunnel of Terrors: Exploring a military strong-hold in the Philippines, a facility that spawned an American sporting great, and an English relic that hosted a cinematic sensation. [S,AD]
The Beached Leviathan: This episode features remains of a correctional facility in Atlanta, USA, forgotten remnants of fraud and fusion in Argentina and an ancient complex in Cambodia. [S,AD]
Jungle Fantasy Land: Exploring the remains of a pioneering industry town in Ohio, a once beautiful Croatian resort bombarded by enemy fire, and an otherworldly garden of Eden in Mexico. [S,AD]
Megalomaniac's Palace: Exploring a once lavish palace in Iraq, the Sathorn Unique, an epic ghost tower in Thailand, and a former sports stadium in Georgia USA. [S,AD]
Before The Crown: Exploring the honeymoon home of a young princess and grand monuments designed by the most notorious dictator of the twentieth century. [S,AD]
Mafia Seaside Resort: Exploring a beachside resort with ties to the Russian mafia, a windswept base hiding lifesaving technology, and a site in Iowa plagued by its past. [S,AD]
A Royal Deception: Exploring a jungle refuge concealing a story of royal deceit, nuclear bunkers infiltrated by outsiders, and a haunted hospital marked by scandal. [S,AD]
Global Icons: Bizarrely-shaped huts in India, once home to global superstars, are now eerily quiet and neglected, and a shattered compound in Colombia linked to a criminal mastermind. [S,AD]
Dead Sea Disaster: A fairy-tale castle that staged one of the strangest stories of the Second World War and a haunting complex on an old American Frontier. [S,AD]
Inside Man: A Middle Eastern region littered with ruins was the site of an extraordinary deception, and a strange facility in Taiwan struck fear into those who knew its true purpose. [S,AD]
Silo City: A real-life concrete jungle in America's 'Rust Belt', and an industrial facility that brought energy to a remote corner of the world. [S,AD]
The Mafia Bunker: An iron monster lost in the Alaskan tundra, a Crusader fort thrown into a modern conflict, and a prison built to house a mafia kingpin. [S,AD]
El Dorado Canyon: An American desert canyon where fortunes were made and lives were lost and an island fortress in Scotland with an Achilles heel. [S,AD]
Murder Underground: An engineering masterpiece carved into the cliff-face, and a long-range beacon that transmitted one of the most infamous messages in American history. [S,AD]
Disaster at the Maya Hotel: Ruins of a vast industrial ghost town in the United States, a windswept, Scottish island and the remains of a resort in Japan that watched a city burn. [S,AD]
Stalin's Subway: In North Wales a secret facility which once manufactured mustard gas and enriched uranium lies in ruins; In Malta is a luxurious quarantine facility, that hides a dark secret. [S,AD]
Hollywood Heroes: Legendary film sets with surprising pasts and real locations that inspired Hollywood. Within these decaying structures are the echoes of history. [S,AD]
Bunker Nation: A small isolated country littered with strange concrete mushrooms and a secret Japanese facility that was once at the forefront of weapons technology. [S,AD]
Disaster On The 38th Parallel: The mysterious Cachtice Castle home to Elizabeth Bathory, said to have killed over 600 girls and a mysterious structure on the 38th parallel. [S,AD]
Space Plane: A juggernaut of Soviet engineering which was crucial to the international space race. Deserted Scottish coastal defences and a complex that's crucial to American history. [S,AD]
Defenders Of Liberty: A now silent site that played a pivotal role defending the U.S through the 20th century. Plus, a crumbling Italian fortress and a ghostly Ukrainian mansion. [S,AD]
The World's Strangest Disaster Zones: A two-hour special featuring a deserted Caribbean city, an American ghost town still burning and an Arctic settlement facing a terrifying future. [S,AD]
North Of The Wall: A complex of stone buildings near Hadrian's Wall that were built to keep Northern hoards at bay! Also, a top secret military facility in the American Midwest. [S,AD]
Blast Zone: Within a dense Polish woodland sits a forgotten complex with an explosive history. Also, grand coastal defences in Ghana reveal a tortured past. [S,AD]