Berlin has everything I like in a city, lovely buildings, easy public transport, interesting history and some of the interesting history for free, I especially like free museums, as most museums and galleries in Glasgow where I grew up are free, that's what I kinda expect, I'm more than happy to chuck good cash money in the donation box but I do like a free visit. I have always been interested in WW2 history and find the whole rise of the Nazi party scarily fascinating so Berlin is right up your aunties strasse, himself has blogged it better HERE but my tuppenyworth...
Do a free walking tour, I can't get enough of them
Topography of terror and the Museum of the German resistance are great and free and WW2 focussed
Tranenpalast and the remains of the Berlin Wall are good and free and Cold War focussed
The Tiergarden and the memorial to the Roma and Sinti are beautiful and free, do you see a theme?
The Riechstag is braw and you can book a free trip to the roof terrace and the dome, we went at night and it was so beautiful. Book in advance and take your passport.
Eating and drinking was reasonably priced and we walked everywhere, we used public transport for the train from airport to Mitte and back again but that was it, the rest of the time we walked, a lot. Total cost of the 2 days was £230 comfortably within the £300 city break limit we set ourselves. For me this was the best of our jollies. As always we financed this oor own selves, I am stunned that no one is offering me free digs when you get this level of top travel tips, aren't you?