The legless, floating woman
At first glance, there’s nothing wrong with this picture. It’s a picture of a woman in a hotel hallway, getting a quick picture before returning to her room. But if you look at the lower half of her body, you might notice something is missing. That’s right, her denim skirt only goes down to her thighs!

Oh, also, she has no thighs! She has no legs! She’s a floating woman in a hallway carrying a bunch of overnight supplies. Upon further inspection, you’ll see that she’s wearing leopard-print leggings, which blend seamlessly into the dotted pattern of the hotel floor tiles.