There are actually two museums you can get to at Checkpoint Charlie. The first is mostly about the Berlin Wall and everything that came along with it. The second is a memorial to peaceful struggle around the world. Both are amazing and definitely must-sees, but if you go, make sure you have plenty of time to look around! It’s easy to get turned around, and there are a ton of displays and a great gift shop! I’d recommend taking at least a couple of hours – longer if possible!