The new Puma house Tokyo, located in the Aoyama design district is a very impressive space. Designed by Japanese design studio Nendo, the space combines a press room
and event facility into one open space which will be used for events, exhibitions, fittings, media events and product launches. The stair forms have been built around the existing architectural elements, which are not only for climbing on but also display the Puma range.
Source and more info though Designboom.