The Earth..including the ocean floor is now comprehensively mapped...Google's camera cars have yet to drive inside the caves!

The Middle East is home to an abundance of vast cave systems..here's where you can find some of the region's most awe-inspiring subterranean scenery...

Sculptors carve portable images..bison, reindeer and the swelling curves of the female form...emphasizing the fertility on which the survival of the tribe depends....