Berlin

Berlin, the German capital, dates back to the 13th century. Items reminiscent of the city's turbulent 20th-century history include the Holocaust Memorial and the graffitied remnants of the Berlin Wall. After being divided during the Cold War, the 18th century Brandenburg Gate became a symbol of reunification. The city is known for its artsy scene and trendy landmarks, such as the gold-colored Berlin Philharmonic, built in 1963, with a panel design that pops off its roof.