This is a photo of a sidewalk chalk drawing by Francois Abenalet in Paris. It is unique in that it incorporates the grass and trees already present in the area, creating a spherical impression that distorts reality and the laws of physics.
The drawing is a perfect example of anamorphosis; which is a convoluted image that can be understood or seen “correctly” only from a specific angle.
For alternative angles and a deeper understanding of the image, go to the original article.