This Greek Cave is Teeming With History | National Geographic

Alepotrypa Cave in southern Greece was likely used by some of the earliest farmers in Europe as a place to bury the dead. Some also suggest it was the mythical entrance to Hades, the Greek underworld. More than 150 bodies have been found in the cave, and researchers continue to find more. The site also gives a rare look at the Neolithic period, when humans first began to give up hunting and gathering and settle into farming communities.