The Reichstag dome is a large glass dome with a 360° view of the surrounding Berlin cityscape. The debating chamber of Germany's parliament, the Bundestag, is visible directly below. A mirrored cone in the center of the dome directs sunlight into the building, and so that visitors can see the working of the chamber. The dome is open to the public and can be reached by climbing two steel spiralling ramps reminiscent of a double helix. A large sun shield tracks the movement of the sun electronically and blocks direct sunlight. With the reunification of Germany and the decision to move the capital from Bonn back to Berlin, it was also decided that the original Reichstag building should be rebuilt along with a new dome that emphasized a unified Germany. Architect Norman Foster won a commission to design and rebuild the Reichstag in 1993.(wikipedia)