Sounds like lot of money and very little time. This means you should take opportunity to visit places that are otherwise expensive, you can travel to cheaper pl

Sounds like lot of money and very little time. This means you should take opportunity to visit places that are otherwise expensive, you can travel to cheaper places like Asia, Africa, South America any other times ;). This will then boil down to options like destinations in Europe (example, Italy, Switzerland or France), Japan, Dubai or Galapagos. I would personally prefer Italy just because there is just too much to see and absorb there (Rome, Vatican, Venice, Florence, Milan and so many other little towns). This is assuming you want to do signtseeing + culture exploration. More rewarding form of travel is to learn something new and become expert at it while being in new place but it's hard to blow off 15-20K on that, may be unless you want to get jet fighter pilot training in Russia or learn to shoot arrows from horse in Japan. Just for comparisons, about $25K is pretty good chunk of amount for a solo travel to go living around the world for entire year.