I lived for one year in Spain, and there i've hosted a lot of travelers met by the road or in a bar, It was a fantastic experience! I met beautiful people in these way and all of them where globetrotters, I was always happy to give them a place to stay for the evening and with most of them I'm still in contact. This make me join couch surfing:)

Difficult to choose but maybe the top one is when I was child with my dad, we escalated pyramid in Egypt, I was tall like the rock I had to go up!