Checkpoint charlie is €15 to take photos with fake guards at a replica checkpoint. The real history is commercialized garbage

Want actual cold war sites? Stasi prison hohenschönhausen has free tours by former prisoners who'll tell you what really happened. Much more powerful than any museum

Glienicke bridge is where real spy exchanges happened. 30 minutes by s-bahn, you can walk where powers and abel were traded. No entrance fee, no crowds, actual history