Abandoned Engineering

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.

Exploring the Tunnels of Gibraltar, a Second World War espionage base, hidden in the Rock of Gibraltar.

Exploring a series of vaults, hidden from view in Edinburgh, Scotland that tell a murky story of opportunity, crime and destitution.

Exploring the remains of an ingenious sky-high solution to a ground-based problem, Chiatura, once know as the Venice of the air.

Exploring Agdam, a city in Azerbaijan raised to the ground in a conflict decided by a new weapon of war.

Exploring an industrial ruin in the Florida Everglades that once competed in the greatest race humankind has ever witnessed.

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.

Exploring a dense forest near the Czech capital of Prague that hides Houska Castle, an eerie castle rumoured to possess supernatural powers.

Exploring Serbia, Fort Pike in Louisiana, and a mountainside refuge in Georgia that was revealed to the world by an act of God.

Exploring a grand structure in Hull that was reduced to rubble by Hitler's planes, Casa Albero in Italy, USS Hornet in California and the Sofia tunnels.

Exploring a decrepit Liberian landmark with American origins, a desolate town in Belgium and a pioneering scientific structure in Cleveland.

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.