The Pineapple House (Scotland) The Airplane House (Abuja, Nigeria) The Cactus House (Rotterdam, Netherlands) The Car House (Salzburg, Austria) The Cube House (Rotterdam, Netherlands) The Floating Farm (Ukraine) The Mushroom House (Cincinnati, Ohio) The Seashell House (Isla Mujeres, Mexico) The Shoe House (Hellam, Pennsylvania) The Upside Down House (Syzmbark, Poland)