Visit the Reichstag
This neo-Baroque edifice housing the German Bundestag (Parliament) survived wars, Nazis, fire, bombing and the country’s division, only to return as a symbol of a new era in German politics. A trip to the top of this open, playful and defiantly democratic space, designed by Sir Norman Foster, is a must, but note that you can’t just rock up any more: following a series of terrorist threats in 2010, you must now book in advance by filling in an online form at visite.bundestag.de, including three possible time slots you can make, at least three working days in advance