If you’re curious about Germany’s history, take a tour of the Zeughaus, a baroque style building which was formerly the Prussian arsenal and is now home to the German Historical Museum. Inside, visitors can explore artifacts, displays, and exhibits that span 1500 years, beginning in the 6th century AD and ending with the early years after German reunification. The upper floor is dedicated to the period from the 6th century AD to the end of WWI in 1918, while the ground floor focuses on the 20th century.