After being gutted by a fire in 1933 and damaged by air raids in World War II, the building was left in ruins. It came under West Berlin, but the West German government was set up in Bonn, with a new assembly called the Bundestag. During the 1960s, the Reichstag building was repaired but the dome wasn't replaced.
After reunification, the building was restored again, with a new glass dome being installed. The Bundestag moved into the building, and it is now the most popular tourist attraction in the city.