Not a museum in any traditional sense, but the sculptures lurking off the coast of Crimea are as fascinating as anything encased in glass and kept in the world’s hallowed institutions. The so-called ‘Alley of Leaders’ was curated in 1992 by diver Vladimir Borumensky, who dropped statues and busts of communist leaders – including Lenin, Stalin and Marx – into the sea at Cape Tarkhankut.

Other intriguing sculptures found here include Roman god of the sea, Neptune (pictured), and a replica of London's Tower Bridge.

The world's most striking communist remains

Secrets of the world’s most remote oceans revealed