An optical illusion on a staircase in the heart of Istanbul, was completed in autumn 2020 by order of Galata University. This is a two-sided 3d optical illusion, one picture you see from below and a completely different one you see when you climbed to the top. Next post I will show the picture that can be seen from above.
More info: maksiov.com
3D Optical illusion on the stairs
