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Photograph 15

This image epitomizes an optical trick, making you doubt your senses. The longer you stare, the less sure you are of reality. The smart play of perspective and design fools your mind, inviting you to relish the fun confusion and rethink what you know about the world. Brace yourself for a mind-bending twist with the "Ponzo Illusion." Named for an Italian psychologist, this visual feat shows two equal lines or objects, yet one seems larger due to surrounding context and depth cues. As you look, your brain reads converging lines as depth signals, making one appear closer and bigger. Even knowing they're the same, the illusion holds, proving the strength of perception and how context shapes what we see.