Via Rollmops in Kanzlerbunker
"Futuro is a round, prefabricated house designed by Matti Suuronen, about 100 were built during the late 1960s and early 1970s. The distinctive flying saucer like shape and airplane hatch entrance... /continue wikipedia article (short)/"
PS I thought I had posted about this a long time ago but I couldn't find anything in the archives. At the worst it'll be a repost ;)