A visit to the Nazi Documentation Centre is almost compulsory. The moving exhibit is housed in the Nazi Congress Hall on the Party Rally Grounds.
The Fembo House is a great choice if you’re interested in knowing more about Nuremberg’s history.
If you’re interested in the Second World War, a visit to the Memorium Nuremberg Trials is worthwhile; if you’re only mildly interested, visit the Documentation Centre at the Nazi Party Rally Grounds instead.
Berlin has a lot of history, and the best way to learn about it is on the spot — and a Storyline of Berlin tour with Urban Adventures is a good choice.