Berlin is a huge, vibrant city. It has more than enough distractions for every kind of tourist, and really does seem to have something to do at any time of night.
But the best thing about Berlin is that its history is pressed so firmly into your face that you could lick it. And, with Germany's famous purity laws in effect, you won't pick up any nasties in the process*
For example, I decided to meander between Kreuzberg and Warschauer Strasse, and I stumbled across some beautiful gardens following the course of the old Luisenstädtischer Canal. While this doesn't immediately scream "History!" at you, it turns out that this canal was 1st started in 1852, but the project was abandoned then restarted several times due to the upheaval that Europe was experiencing (2 World Wars, being just part of this). At some point the canal was filled in and provided the foundation for part of the length of the Berlin wall.





