The Prada Epicenter was designed by the Swiss architecture firm Herzog + de Meuron Architects in the Aoyama district, Tokyo (Japan).  It was completed in 2003, and it is serves as a retail building for the Prada brand and its products.  The building located in a corner has a small entrance ‘plaza’, and it is conformed by display shelves, fitting rooms, elevators, and staircases. The lattice structural system conformed by diamond- shaped steel and interesting concave and convex glass gives to the building a particular transparency.  The building itself, which is an eccentric 6-story glass crystal, is considered as a huge display cabinet where everything can be seen from the exterior.  During the day, it sometimes reflects the sky.