Argentinian artist Leandro Erlich created this illusion of people walking underwater called The Swimming Pool, for The Century Museum of Contemporary Art in Kanazawa, Japan. It's a piece of glass with water on top of it, and empty space on the bottom.
This swimming pool in Mumbai, India, has been built to raise awareness about the threat of sea level rises as a result of global warming. It was constructed by attaching a giant aerial photograph of the New York City skyline to the floor of the pool.
Check out the new Mumbai Apartment complex The Aquaria Grande, with its Floating Balcony Pools. Designed by Hong Kong architect James Law, the plans for this incredible dream residence actually have swimming pools in the place of balconies.
Crans-Montana, Switzerland: At LeCrans Hotel & Spa. Choose between indoor and outdoor pools and enjoy balconies overlooking snow-covered peaks and pines, rustic decor, and locally sourced wines in the on-site cellar.