SHAPE this photography shows literally a natural shape. It is a shoot of a rock wall somewhere besides the ocean and one hole inside the rocks is amazingly shaped like heart. The light turquoise of the ocean makes this shape even more visible.
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.