The scintillating grid illusion causes the brain to perceive ... The café wall illusion features a checkered "wall" with horizontal lines that appear to bend in different directions.

Today’s optical illusion challenges viewers to spot the odd “24” in just 5 seconds—only 1% succeed! This brain teaser tests ...

Can you count all the squares in this viral optical illusion?(Facebook/Minion Quotes ... background overlaid with white lines forming a grid. At first glance, it appears basic — just a series ...