Jason de Caires Taylor& underwater sculpture garden in Cancun. "Constructed out of concrete and steel, and bolted to the ocean substrate, the works here act as artificial reefs that provide & ideal habitat for filter feeding organisms.
exPress-o: Shanghai's Bike Couriers. Photos by Alain Delorme. Impressive stacking skills by the bike couriers. Unusual sculptures of typical goods are fascinating to see them balanced and kept in place while biking.
Easter Island Stones actually have bodies unearthed in excavation. I thought it was a joke, but went to snopes and it's true. The mystery of how they got here and who made them still exists. Definitely want to visit Easter Island.