Huge, busy Mitte is Berlin’s central borough, home to the Brandenburg Gate and Museum Island’s art institutions, as well as the striking Hauptbahnhof central train station and sprawling Tiergarten park. Elegant boulevards like Unter den Linden and squares like Gendarmenmarkt are known for their restored pre-war buildings, and the Hackescher Markt area has hip cafes and shops in a series of labyrinthine courtyards.