Perhaps..I think that stairwell is located at Hogwarts..Please Register or Log in to view the hidden image!
lol i posted another vid (explaining the ''Escherian stairwell''), but it looks like it was very similar to this one. Here's a comment I found though in yahoo answers, that seems to share how to pull off this illusion: ''Its really easy. There is one stairway leading down, and another leading up. You walk up to the top of the stairs, then go down two flights, and walk around the corner. You then go back and edit the tape to look like you just came out at the bottom. For the part where you walk all the way around with a group of people holding hands you have to have at least one set of identical twins. In the famous escherian stairwell video, they have those african american guys. You get people to connect hands. Then you show the first twin, without showing who he is holding hands with. Then you walk around until you come to his twin brother. Make sure you don't show who he is holding hands with, because you can only repeat one person, unless you have more than one set of twins. That is how the escherian stairwell works. Pretty clever huh? Its actually just takes some simple video editing to make it work.''
Only a man who believes everyone is lying never gets fooled. But then he never learns anything new either.
There is nothing magical about it Below is an architectural blueprint of the staircase, http://www.123opticalillusions.com/pages/opticalillusions25.php Please Register or Log in to view the hidden image!
This one has several optical illusions, look at all the parts of the assembly, http://www.123opticalillusions.com/pages/opticalillusions9.php and this one is just amazing, http://www.123opticalillusions.com/pages/opticalillusions9.php And for the mathematicians, http://www.123opticalillusions.com/pages/opticalillusions38.php