La Jolla, California
This oceanfront house was designed and built by Dale Naegle in 1968 for Sam Bell of Bell's Potato Chips. Naegle was instructed to build a futuristic-looking, earthquake-proof structure. The tram that carried people from the roadside down to the house was eventually taken out of operation, leaving visitors to trek to the house on foot. The Mushroom House was part of a larger building project that started in 1955 with a house at the top of the cliff that, according to Modern San Diego,
was demolished in the 1990s.