This is The Hotel Puerta de America in Madrid (Spain). Modern an luxury hotel. A different architect/interior designer of international standing has been commissioned to create each floor of the hotel, giving free rein to their creativity in the development of the rooms and floor as a whole. The list includes Foster and Partners, Zaha Hadid, Chipperfield, Jean Nouvel, Arata Isozaki, Ron Arad, John Pawson etc. The hotel has 13 floors with 30 rooms, 1200 sqm per floor.
Hotel's Website : http://www.hoteles-silken.com/hpam