

Underground Worlds
Episod
M1 E1 - Gibraltar
Tonton pada peranti yang disokong6 Julai 201944minNew discoveries reveal the secrets of a long-lost chamber with evidence of high-stakes espionage in a hidden subterranean city built within the Rock of Gibraltar.Tonton secara percumaM1 E2 - Sweden
Tonton pada peranti yang disokong13 Julai 201944minExploring Sweden's passion for subterranean spaces, and how the nation has taken extraordinary precautions to protect itself - by excavating an astounding 65,000 nuclear bunkers.Tonton secara percumaM1 E3 - Switzerland
Tonton pada peranti yang disokong20 Julai 201944minExamines some of Switzerland's 300,000 subterranean bunkers, the creation of an entrepreneur in England that's shrouded in mystery, and a network of man-made tunnels deep beneath Slovenia.Tonton secara percumaM1 E4 - Kingdom of Salt
Tonton pada peranti yang disokong27 Julai 201944minThe Wieliczka Salt mine in Poland, some 327 metres deep, where the voids left behind from excavating salt have been transformed into extraordinary spaces, carved by hand.Tonton secara percumaM1 E5 - Bouzincourt
Tonton pada peranti yang disokong3 Ogos 201944minA labyrinth of tunnels underneath a tiny French village which contains mysteries from several historical eras, and a Welsh slate mine that has been given a new lease of life.Tonton secara percumaM1 E6 - City of Naours
Tonton pada peranti yang disokong10 Ogos 201944minExplores an underground city beneath a forest in Northern France built to house 3000 people, an ice cave under Iceland's biggest glacier, and a subterranean power station in London.Tonton secara percumaM1 E7 - Jersey War Tunnels
Tonton pada peranti yang disokong17 Ogos 201944minAn exploration of the underground bases built by the German army during the occupation of Jersey, and a group of more than 20 underground cities in Turkey, one of which dates back to 800 BCE.Tonton secara percumaM1 E8 - The Maginot Line
Tonton pada peranti yang disokong24 Ogos 201944minAn exploration of the secrets of the largest subterranean fortress along France's border with Germany, and a look at how a unique precious mineral was discovered in Derbyshire.Tonton secara percumaM1 E9 - Edinburgh Vaults
Tonton pada peranti yang disokong31 Ogos 201944minThe sinister history of Edinburgh's vaults and the development of Helsinki's subterranean spaces. Plus, the impact of the building of Naples on the volcanic ground below.Tonton secara percumaM1 E10 - Dover War Rooms
Tonton pada peranti yang disokong7 September 201944minExploring the military headquarters built beneath Dover Castle during the Second World War, and Odessa's catacombs, possibly the largest tunnel network in the world.Tonton secara percuma