Optical illusions and visual puzzles often seem simple at first, but they quickly reveal how easily our eyes and minds can be tricked.

Many of these images look straightforward at a glance, yet a closer look shows hidden details that change everything. One popular puzzle circulating online appears to be a swirling spiral, almost as if it’s pulling the viewer inward with its hypnotic motion.

However, once you take a moment to examine it carefully, the surprise becomes clear: the image isn’t a spiral at all. It’s actually made up of multiple concentric circles arranged in a very deliberate way. The lines and shading are placed so cleverly that the circles appear to twist, giving the illusion of a spinning tunnel. That’s where the challenge comes in — how many separate circles can you identify? What begins as a quick glance often turns into an intense moment of concentration.