We love a good optical illusion here at Creative Bloq, and even more so when it's one that leaves people's heads spinning like this one Can there really be 16 circles in the image below?

The illusion in question is a three-dimensional cylinder spinning, and it works by taking advantage of how pupils change size when you’re looking at light or dark images. Then, they can track ...

the spinning tunnel and the upside-down room. The difference is that Paradox Museum explains the math and science behind each illusion. “We’re a top field trip destination for pre-K all the ...