The Viking Ship Museum. Was. So. Cool.
Viking longships are something I've always found interesting, but seeing them in person? More amazing and detailed than any picture could capture. They are also far larger, although the ones in the museum aren't even the biggest. I think Viking history and old Norse culture is fascinating, and I looked at every single artifact and read about it. I even bought a shirt with Viking runes on it that translates to "Man knows little."
It only made my Viking interest bigger. Highly recommend to any fellow history needs out there.