This amazing assortment of homes from all over the world includes a house hidden behind a wooden grille in Italy, a wave-form residence in California and an Austrian residence that's rusting beautifully. Lithuania has a round house built from sticks while there's an all-American house in Japan, a topsy-turvy home in Brazil has everything upside down and there's one in Australia that looks like a fence. Spain goes for the spaceship style, a house in Arkansas towers above the forest while one in San Francisco defies gravity and in Argentina a home takes the molecular approach and is light, incredibly strong and surprisingly portable.