Like it or hate it, the San Francisco Federal Building designed by Thom Mayne and his firm Morphosis has a raw energy. It also tried for cutting-edge levels of sustainability, with natural ventilation in the tower and an outer skin of perforated steel panels to reduce energy use. But the 2007 complex is more at home in the monographs of the Pritzker winner than at the corner of 7th and Mission streets, where a freestanding cafe turns its concrete back on passers-by. Photo: John King