In 2006, the company Vitra asked two Swiss architects, Jacques Herzog and Pierre de Meuron, to design a building in Germany, to showcase the furniture of their new "Home" collection, and to include a show-room, a restaurant and a shop. The result was not one building, but twelve. These houses, each with a sloping roof, are stacked at odd angles over five levels. Inspired by the traditional house of the region, all the houses are similar except fortheir length, width, and height. The building was finished in 2009.