These pools by Master Pools Builders will grab your attention. Imagine sitting in a dry sunken island-lounge area in the pool. See these and more amazing pool features. Article in Luxury Pools Magazine, Spring 2010
Old tower incorporated with an underground home! I love the "observation tower" and the open area in the middle! Although if I were to do an underground house (DREAM!) I would probably try to hide it instead of having a huge tower drawing attention.
Jim Mortensen had a plan to beat the high price of oil during the 1974 oil embargo. He’d build an energy efficient underground house. With help from friends and family, Jim Mortensen and his wife Mickey spent about eight years.