I would happily leave for the middle east. It has always been the one place I would to go to with a camera, a backpack, and enough money to get by. A close second would be the Indo-China region.
Europe! See you didn't specify how specific we had to be, specifically. I could never decide on one place... I would enjoy spending the rest of my life traveling... I love new places. If I had to decide, it would probably be china or japan right now. Woo hoo.