BERLIN, GERMANY

Berlin is a multi-faceted city. So feast your eyes on modern architecture, then visit a Baroque palace. Spend the day at one of the world's finest zoos, then spend the evening listening to one of the world's finest orchestras. Most travellers make a point of taking in more serious WWII-related sights as well. TripAdvisor travellers give particularly high marks to the grim but thorough and thought-provoking Topography of Terror exhibit.