Impossible Stairs by Andreas Aronsson
If you tried to walk up or down these stairs to get to the top or the bottom, you would find yourself walking for a very long time.
This is a variation of the Penrose Stairs created by Lionel and Roger Penrose in 1959.
More of Andreas Aronsson’s impossible figures can be viewed on his website. You may also be interested in revisiting his Hoops impossible drawing that was previously featured on An Optical Illusion.