I really like this house by spanish office Subarquitectura (Andrés Silanes, Fernando Valderrama and Carlos Bañón). Not an entirely new idee (what is?) but extremely well executed. This loopy building, which got finished late 2009, scored the "Summer hit of 2010" by Dutch magazine Mark and has been featured in many other important publications. It's located in the Bullfighting town of Galapagar, northwest of Madrid. Most of the photographs are by David Frutos.