Germany's capital, once divided, is now one of the hippest cities of them all. Berliners are embracing life and living it to the fullest. Cafes, restaurants, bars, beer gardens, music and art venues are found around every corner, making this an easy spot in which to have fun.
A little culture should be part of every visit, so don't miss the Brandenburg Gate, the fabulous old/new Reichstag, the harrowing Holocaust Memorial and the remains of the Berlin Wall. To try and understand Berlin, and to some extent Germany, make sure you explore the east and the west sides, and notice the still existing differences.
Then, back to fun. Have a "currywurst" (sausage with spicy sauce) at a street stall, and pop into what's reportedly the oldest pub in Berlin, Alt-Berlin, for a beer (or two). Then party the night away in the districts of Mitte and Prenzlauer Park.