Hello all, going on a short 4.5 day trip to Berlin here in a couple weeks and wanted to ask your advice. I won't be totally independent, unfortunately. I'll be with a group and will be having some seminars for parts of days and that will likely include some group walking tours and maybe a museum visit or two, not entirely sure. But, my question is, with the little free time I do have what would you suggest are some of the coolest historical sites to check out? I won't likely have enough time to devote to a thorough museum visit, so Im talking more about places you can view and move on. Anything WWII or Cold War interests me a great deal, so any place you can think of that as a history nerd I'd appreciate seeing, even if only for a few minutes. What are your top picks for me? I realize I could have posted this in the travel forum but I really wanted to pick the brain of fellow history enthusiasts.