49
A number of unusual cave paintings dating back 10,000 years have been discovered in Chhattisgarh.
59
A massive reservoir of water three times the volume of all the world's oceans lies 700km underground.
30
A subterranean coal seam fire in Australia has been burning continuously for more than six millennia.
10
James Wannerton possesses the unusual ability to derive an actual physical taste from places and names.
10
Scientists have discovered signs of water on the moon's surface that has come from deep underground.