Bridget Riley Variation (after “Movement in Squares”) by William Keckler on Flickr.

leg-godt:

Impossible castle | by Brixe63 » via Young Spacers

Stifte by Brixe63 on Flickr.

Modulex-Würfel by Brixe63 on Flickr.

Modulex-Dreieck by Brixe63 on Flickr.

robsheridan:

LEGO optical illusion by Brixe63.

And no, it’s not Photoshop:

legodiem:

LEGO Optical Illusion Mosaic (by andy_0306uk)

LEGO optical illusion (via chickago)