subterranean

The Earth’s last mystery is about to be revealed…The world beneath the world is waiting. Beneath the ice at the bottom of the Earth is a magnificent subterranean labyrinth, a place of breathtaking wonders—and terrors beyond imagining. A team of specialists led by archaeologist Ashley Carter...

The idea that our planet consists of a hollow, or honeycombed, interior is not new. Some of the oldest cultures speak of civilizations inside of vast cavern-cities, within the bowels of the earth. According to certain Buddhist and Hindu traditions, secret tunnels connect Tibet with a...