Where: Berlin, Germany Constructed: 1695-1699 Extended: 1702-1713 and 1740 Most important renovation: 20th Century Accessible: yes, interior with guide Important fact: The castle was severely damaged at the end of WWII. The restoration work took over two decades. The castle was part of West Berlin
at the time. https://www.spsg.de/en/palaces-gardens/object/charlottenburg-palace-old-palace/