It's just a regular photo of a man by the pool, that is - it was a regular photo until we turned it upside down and got the illusion of a man sitting next to a water wall.

The guy getting ready for a jump in the Swimming pool. But do you spot something fishy in this picture

This is similar to the pool illusion, once again this is one of the most exciting painting. Another impossible object illusion, not the absolute best but a good one for a quick ponder.