Despite having international friends, as well a grandfather that was born in Germany (yet still American due to how military bases work), I have not traveled outside the country. I haven't crossed the Mississippi yet, but I have been to the east coast down by Myrtle beach.

If I did have the ability to travel outside the US, I'd probably visit central Europe or Japan. Visiting Japan sounds cool, and I have several friends that live in central Europe (Germany, Austria, Hungary, etc).

Fun fact: One of my friends lives in Hannover, and during World War 2, the Americans captured the city on my birthday. Also, the division that did so was mainly made up of men from my state and the surrounding states. Thought it was interesting and a welcome surprise.