The Reichstag is the seat of the German Parliament. Built in a pompous High-Renaissance style between 1884 and 1894, the building was partially destroyed by a fire in 1933 that probably was set by the Nazis, who, blaming the fire on the Communists, used the incident as an opportunity to seize power. Allied bombs destroyed part of the Reichstag in World War II. Today, a striking glass dome designed by English architect Sir Norman Foster crowns the building. After a security check, you can take an elevator up to the dome, where a sweeping vista of Berlin opens out before you. The dome also has an outdoor observation area and a rooftop restaurant. Because this is one of Berlin’s most popular attractions, lines can be long so arrive early. Check the website guided tour reservations.