Evidence the Ancient Builders are Hiding Underground

These massive stone temples, some of the oldest in the world, seem almost impossible to have been built by prehistoric farmers. But there's more lurking beneath the surface.

Legends say the Nephilim were the giant beings who constructed these incredible structures, and their descendants may still dwell underground today. We investigate the possibility of these giants, examining bones, elongated skulls, and mysterious hidden subterranean chambers called The Hypogeum.