If you ever end up at Detroit's Wayne County Airport, make sure you go through the underground tunnel between Terminal A and Terminals B/C. They've got a psychedelic tunnel, similar to the one at Chicago's O'Hare airport, only better. The sides of the tunnel are lined with patterned glass panels. Behind the panels are lights, presumably neon, that change color in time to the music. As you ride along on the moving sidewalks, this music plays , sometimes new-age, sometimes almost tribal. While it does, the lights behind the panels change colors, illuminating the whole tunnel. It can get darker when it occasionally turns a deep blue, or lighter as the yellows or pale greens come out, but there's rarely just one color. It's very vibrant.

For an added bonus, get really stoned before you go.