Deep Earth

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Description

Throughout history, human settlements and societies have been strangely drawn to fault lines, those mysterious places where the Earth's crust reveals its tenuous nature, and to other areas that connect the surface of the planet with its deep interior. This program explores the significance of caves and other geological formations in the development of civilization. Viewers enter a spectacular crystal cave in Mexico, drop down a hole in the Iranian desert, and crawl through seven-thousand-year-old tunnels in Israel. The film shows how these portals into the nether regions have not only provided refuge and posed cathartic danger, but also given access to important resources.