Jorge Franganillo from Flickr expressed his admiration for the Philharmonie in the following quote.
Home of the Berliner Philharmoniker, this concert hall is world famous, not only for its unique arquitecture, but also for its amazing acoustics. It's a visionary piece of architecture as well as a hallmark of the classical music world.
Below are the pictures that he took of the exterior. The beautiful oranges and yellows from the metal are enhanced by the lighting (that is only visible because the pictures were taken at dusk) and the contrast to the blue sky. Something I hadn't realized until I saw these pictures was that the stained glass that features prominently in the lobby also extends around to other sides of the building. (As seen in pictures 1, 2, 5 and 7.)