The soil keeps shifting in Rancho Palos Verdes, Calif. For the right buyer, that presents a great opportunity, at least for the time being.

Watch these primitive builders create an underground hobbit-style house using natural materials. The home features a grass roof that blends into the landscape. A fish pond sits beside the house, ...

Watch these primitive builders create a modern two-story millionaire house using only their bare hands and natural materials from the jungle. Mud, wood, and stone are shaped carefully to form walls, ...