Museum Island (Museumsinsel)
In 1999 Museum Island (Museumsinsel in German) was named a UNESCO World Heritage Site. It sure deserves the distinction: this small island on the Spree has a singular collection of buildings, all filled with art and cultural artifacts.
The five museums are: Altes Museum (Old Museum), Neues Museum (New Museum), Alte Nationalgalerie (Old National Gallery), Bode Museum, and Pergamon Museum. Each museum is a world-renowned storehouse of works of significant cultural value. Taken together this is one of the finest museum complexes in the world.
Check ticket availability
No lines saved by buying online in my case, but perhaps there are busier times.
Well worth the effort to book online.