- Who would not be changed by hiking the Inca Trail to Machu Picchu? Not only for the cultural experience, but maybe the personal development of testing your limits and finding out that you are capable of peforming a physical feat like that trek - maybe you've never done anything like that before. The confidence that you gain could be life-changing.
- What U.S. child would not realize how well off they are when compared to poor village children? And after seeing how happy those children are with simple toys and little else, would they become less materially oriented?
- Why not visit a local food market so you can sample fruits and vegetables that maybe you've never even seen before? Or maybe visit a local artisan to see how they create the wonderful goods you see at an indian market. Or maybe overnight with a local family.