Do make use of the train surface which is really good and you can cover a lot of ground easily
The one that most people do is the Brandenburg gate-touristy but very impressive, extensive park and zoos nearby
I thought the jewish monument was very meh, a big disappointment.
Don’t go to checkpoint Charlie -cheesy shite .
The wall is quite harrowing , I hadn’t known that there were two walls- if you got over the first they could shoot trying to get over the 2nd !!!!