Giant natural balls in the Franz Josef archipelago that leave scientists flummoxed.

But how did ancient artists create prehistoric masterpieces on sheer cliffs today only accessible by sophisticated modern climbing equipment?

Mummified archer turns up in remote museum after locals refused to hand him over to the Hermitage in St Petersburg.

Haunting images of this Railway to Nowhere, built by Gulag convicts in the cruellest of conditions on the cusp of the Arctic Circle.

Last survivor of prominent base for assault and reconnaissance planes deserted since collapse of the Soviet Union.

Officially Colin Madsen, 25, died from hypothermia on a hiking trip in Buryatia, but his family are convinced he was killed.