Amazing Race

http://www.cbs.com/primetime/amazing_race_application/

If I can find anyone who's crazy enough to travel around the world in 30-40 days while dealing with tons of cultural shocks, jetlags, and TV camera in your face.

I really think the TV camera bit will be the worst. From the episodes I've watched, I also fear not being able to run with the huge backpack. Still, the idea of traveling to so many places is still attractive.