I really enjoyed this very nice quiz. I also think it would be more appropriate to have the answer to the seat of German parliament read "Reichstagsgebäude" because it is the Bundestag that sits in the building, not the Reichstag. Too much baggage with that term, and you could still use a type-in for the answer.
The comment about Jesse Owens isn't really correct. From what I understand, Hitler was actually one of the only major leaders to congratulate Owens, when many others ignored him... Not to say Hitler is good or anything, but still, credit where credit is due.