It seems difficult to believe but these drawings are nothing more than chalk on the surface of a pavement leading to perspective effects inducing dizziness and vertigo.
Source: Julian Beever.
It seems difficult to believe but these drawings are nothing more than chalk on the surface of a pavement leading to perspective effects inducing dizziness and vertigo.
Source: Julian Beever.
Rotate it upside down and the hussar becomes its own horse.
Simply rotate one and you get the other.
Not a pure optical illusion, but a compelling illusion.