Just another Premium Mall from Chelsea Group. They're ALL Premium. That's kinda' like DeLuxe. The first two of these were a walk in the park, but this one in Cincinnatti has been an exercise in stupidocracy. I don't know where to start, so I won't. Here's a SketchUp spin through the xray guts of their main pylon. The railroad-tunnel effect is a chamber of LED stripping inside formed transparent blue plex. The blue plex has a backing of white plex spaced-off about 1/2" inch, giving an illusion of a solid acrylic structure.