This icon of modern architecture was designed by Moravian-born Adolf Loos for construction magnate František Müller in 1930. The building looks like a solid white block from the outside, though the interior is constructed with marble, mahogany and walnut, highly polished and cleanly designed. The rooms all sit at various levels around an ascending sweeping spiral. Tram N°1,18 to Ořechovka. Advanced reservations to tour the villa are required and can be made on the website.