“Transformation”, Constitution Center, Washington, D.C. 
 

“Transformation” runs along a 12’ x 37’ wall, works its way across the ceiling, turns a corner and then goes through a glass wall into the entrance of a Metro stop, where it again passes from a wall to a ceiling. Notice that where the light ends on the long wall it bends back up the other side, something that light cannot do.

http://www.stephenknapp.com/public-art-2

(14.09.2019)