Beneath the Caucasus mountains Russian cavers made a terrifying discovery: blind creatures, freezing waters, and something far worse—suspended in the dark.

This cave absolutely blew us away. In this video, we explore what might be the largest river cave we've ever encountered – a ...

Now, the caves deemed by scientists to hold the key to understanding where humans came from, are open again to anyone visiting South Africa.The Sterkfontein Caves yielded numerous fossil discoveries ...