At first glance, this bathroom seems completely ordinary. It has everything you’d expect a sink, a bathtub, neatly hung towels, a mirror, and all the usual fixtures. Most people take a quick look and assume everything is in order. But there’s a small, subtle detail that’s easy to miss, and it throws the whole setup off. It’s a perfect example of how our brains often overlook things we assume should be there.

That’s what makes this visual puzzle so effective it plays on our built-in expectations. Everything looks functional at first… until you take a closer look under the sink. That’s when you notice it: there’s no drainage pipe.