Yes, if you stand in this spot in the parking garage shown in the photo, the word "DOWN" is just floating there. The sign was designed by an artist who won an award for it, because there are apparently awards for making innovative signage in parking garages.
He created the effect of continuous letters by adjusting the angles for appropriate perspective as they reached walls, just like in those incredible chalk sidewalk drawings that are all over the web.
These sorts of illusions are great when they appear on sidewalks, and probably much less entertaining when you ram straight into the wall of this Wile E. Coyote-inspired parking garage after swerving to avoid the giant DOWN sign that materialized in midair in front of your car.
http://www.cracked.com/article_16556_15-images-you-wont-believe-arent-photoshopped.html#ixzz1bKjpOaaJ