Museum Pass Berlin
Let’s start with how to save time and avoid queues. If you plan to visit many museums, the Museum Pass Berlin might be useful. The card costs €32, is valid for three days, and allows you to visit more than 30 Berlin museums and exhibitions without waiting in line.
You can purchase the card in advance here.
Charlottenburg Palace (Schloss Charlottenburg)
A Baroque palace built between 1695 and 1699 on the orders of King Frederick I for his wife, Sophia Charlotte, who disliked social events and sought solitude.