Exterior of the Reichstag dome, a glass dome constructed on top of the rebuilt Reichstag building, which houses the German parliament - the modern Bundestag, in Berlin, Germany. It was designed by architect Norman Foster and built to symbolize the reunification of Germany. The distinctive appearance of the dome has made it a prominent landmark in Berlin. Inside, audio guides are available that describe the most important facts about the Reichstag Building and its surroundings, the German Bundestag, the work of Parliament, and the sights one can see during the 230-metre-long ascent and descent.