The iconic Reichstag building in Berlin, Germany has been through a lot since being built in 1894- it has been burned, bombed, rebuilt, and buttressed by the Berlin Wall. It was then given a modern makeover by famed architect Norman Foster, including a glittering glass dome that visitors can access via a lift to take in amazing 360° views of the city. If you want to make sure you can get in, you can make free reservations online, or try your luck at the Reichstag Visitors' Centre for tickets for the same or next day- just don't forget to bring your ID!