Underground Worlds

March 2020
1:00:00

Dover War Rooms (S1E10)

4.0 2 x
Exploring the military headquarters built beneath Dover Castle during the Second World War, and Odessa's catacombs, possibly the largest tunnel network in the world.
1:00:00

Dover War Rooms (S1E10)

4.0 8 x
Exploring the military headquarters built beneath Dover Castle during the Second World War, and Odessa's catacombs, possibly the largest tunnel network in the world.
1:00:00

Dover War Rooms (S1E10)

3.0 3 x
Exploring the military headquarters built beneath Dover Castle during the Second World War, and Odessa's catacombs, possibly the largest tunnel network in the world.
1:00:00

Edinburgh Vaults (S1E9)

4.0 2 x
The 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.
1:00:00

Edinburgh Vaults (S1E9)

4.0 1 x
The 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.
1:00:00

Edinburgh Vaults (S1E9)

4.0 2 x
The 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.
1:00:00

Edinburgh Vaults (S1E9)

4.0 3 x
The 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.
1:00:00

The Maginot Line (S1E8)

4.0 2 x
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.
1:00:00

The Maginot Line (S1E8)

4.0 3 x
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.
1:00:00

The Maginot Line (S1E8)

3.0 3 x
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.
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