This video has created some buzz online, as it features perhaps the most incredible set of stairs ever created.
It's called the Escherian Stairwell and it's design has been dazzling everyone who sees it at the Rochester Institute of Technology.
Somehow, this staircase goes against the laws of physics by looping back into itself. You have to see it to believe it.
Here's what we suggest - check out the video at the top, then read the rest of this post to find out how it was built.
Well, the truth is - it was never built. The stairwell doesn't exist.
It's actually a project by RIT film/animation graduate student Michael Lacanilao who set out to create a modern myth. He posted the project on Kickstarter, hoping to raise $12,000 but only got $940 from 30 backers.
Here's the Kickstarter page and a video of Lacanilao explaining his idea.
As part of his pitch, Lacanilao wrote "The most powerful aspects of myths are their ability to incite wonder and excitement."
And that he was "passionate about immersing audiences with a sense of wonder and surrounding them with a wealth of detail executed with such rigorous realism that they can choose to step into it, get lost in it, and believe in it."
He even created a low budget science show that featured people experiencing the staircase for the first time (that's the video at the top). And he called it Episode 3 (even though there was just one) so it seemed like an actual series.
Ultimately, it's an experiment to see if we can be fooled, and how willing we are to believe something even though it defies basic logic.