A tour of Yugoslavia's top-secret 'Object 505.'
The abandoned former home of Ante Pavelić – the man they called the ‘Butcher of the Balkans.’
Exploring the tunnels, drains, lost places & underground rivers of the Ukrainian capital.
Underground tourism amongst the ruins of the Byzantine capital.
An illustrated guide to urban exploration in the Russian capital.
Deep beneath a Crimean mountain lurks a derelict nuclear facility that died with the Cold War.
A tale of ropes, waders and security run-ins, on one wild night in the Northern Capital.
After a reported crocodile sighting in Bristol, I ventured down into the sewers for a closer look.
A beautifully preserved Victorian ice well, hidden for more than a century beneath central London.
London as you’ve never seen it before: exploring the hidden infrastructure of the British capital.
Take a tour through a once-secret, Soviet nuclear submarine base – at Balaklava, on the Crimean Pe
The 'Maze Drain': one of Melbourne's largest underground waterways & home to hordes of venomous spid
Exploring the Godstone Main Series Mine: a firestone quarry beneath Surrey, England.
Exploring the world’s largest network of underground tunnels.
A visit to London Below, and the subterranean waterways of the Lost River Effra.