Germany's capital invites travelers to experience not just one, but two cities: a land first divided and then dramatically reunited. With such a complex past, an Essential Free Tour of Berlin will be the best introduction to all the must-see landmarks of the city. In addition, this free tour also allows travelers to see with their own eyes the imprint left by the Communist regime during the Cold War. Free Tours can follow different routes depending on the creativity of the guide and the dynamics of the group, but the Reichstag is a must-see landmark in any walk around Berlin. This beautiful classical building is the seat of the Bundestag, the lower house of the German Parliament. (Note: Travelers who wish to visit its impressive dome during their stay in Berlin must register in advance.) Nearby, you can take photos of the majestic Brandenburg Gate, the best-known symbol of Berlin.