Season 7 - Episode Guide

Eerily familiar ruins amidst shifting desert sands, legendary film sets with surprising pasts and real locations that inspired Hollywood. Within these decaying structures are the echoes of history, each haunted shell with its own unique story.

A secretive facility in North Wales which produced horrific weapons. The Scattered ruins of an engineering disaster in the USA. A subterranean network in Ukraine. And an island prison built to stop deadly epidemics in their tracks.

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. Within these decaying structures are the echoes of history; each haunted shell now ready to tell its unique story.

An engineering masterpiece carved into the cliff-face, and a long-range beacon that transmitted one of the most infamous messages in American history.

An American desert canyon where fortunes were made and lives were lost, and an island fortress in Scotland with an Achilles heel.

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.

A real-life concrete jungle in America's ‘Rust Belt', mountainside tunnels dug to defend an empire in peril, a toxic facility hidden deep in a Soviet-controlled backcountry, and an industrial facility that brought energy to a remote corner of the world.

A Middle Eastern region littered with ruins - the site of an extraordinary deception, an industrial relic in Buffalo that was the source of an unlikely American icon, the relics of a once thriving city-state in Tanzania, and a strange facility in Taiwan that struck fear into the hearts of those who knew its true purpose.

Eerie ruins hiding in the forested hills of Arkansas, USA, and a disintegrating gulag in Albania that housed enemies of the state.

A volcanic island just off Taiwan containing chilling ruins from its darkest era, a strange site filled with rusting metal cages and a miniature railway that lies forgotten in the woods of Arkansas USA, an Eastern European town that lived through a radioactive nightmare, and a United States Air Force base in Britain with a top-secret agenda.

A fairy-tale castle that staged one of the strangest stories of the Second World War, a haunting complex on an old American Frontier, beach resorts in the Middle East that are slowly being swallowed up by the very land they were built on, and a mysterious underground maze hidden beneath Liverpool.

Bizarrely-shaped huts in India, once home to global superstars, are now eerily quiet and neglected. Also, traces of a legendary escape story hidden beneath a Polish forest, epic castles in Transylvania telling a chilling story of the world's most notorious villain, and a shattered compound in Colombia linked to a criminal mastermind.