What is the most interesting place you have ever visited?

Question

I went to finland once. the opportunity presented itself in the form of an exchange student at my school. we became friends, and she invited me to come stay with her over the summer. i had money coming to me from my parents because of a long standing rule in my house (i may make a question about it one day, so you know what im talking about) so i took the opportunity and went to finland. i stayed mainly near helsinki, but i also went north a little bit. i had the time of my life and saw all sorts of stuff i wouldnt have seen if i were just a tourist and not staying with someone. i went to lots of local nightspots and resturants, and not just the touristy places. ever since then i miss it so much! so, what is the most interesting place you have ever visited?

wow, lots of good answers! you even made me think of parts of my trip that i forgot to mention. i learned a lot about politics and history that i didnt know anything about before this trip, and other stuff too. ill let you guys pick the answer cause they are all good to me in their own way, because other people find differant stuff interesting than what i find interesting.