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This is a 30-foot-tall Martello Tower in Suffolk, England. It has one door, 13-foot-thick walls, and was built to keep Napoleon out of England. This particular fortress was refurbished with a cushy interior. It's perfect for keeping out nosy do-gooders. More »
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These conical, seven-century-old caves in Kandovan, Iran are made of ancient volcanic ash. They're still occupied and open to tourists visiting northwestern Iran. More »
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Throughout the 1980s, tourists flocked to the Xanadu House, a futuristic home in Kissimmee, Florida. This domestic pleasure dome was made of polyurethane and filled with "friendly computer servants." More »
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"Plastics" may have been a famous punchline in The Graduate (1967), but plastic was serious stuff to French architect/artist/theorist Jean Maneval. In 1964, he designed a Bubble House ("Bulle a Six Coques") constructed of six interlocking reinforced polyester shells that could be easily transported to and set up at the chosen home site. More »
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