Photo of the pedestrian, Light Tunnel at Detroit's DTW airport.
Steve Hopson
CC BY 2.5
Photo by Steve Hopson.  More information about photographer and other images at <a rel="nofollow" class="external text" href="http://www.Stevehopson.com/">Stevehopson.com</a>.  Use of this photo <b>requires</b> attribution - credit Steve Hopson Photography