1. Machu Picchu, Peru - built by the Incas around 1450 and abandoned a century later during the time of the Spanish Conquest.
2. Great Barrier Reef, Australia - world's largest coral reef system and snorkeling for days.
3. Venice, Italy - canals, architecture, artwork.
4. Alaska, United States - breathtaking landscapes, hot chocolate and brown bears
5. Oahu, Hawaii - sometimes sandy toes are enough of a reason...