We found the coolest thing in the Detroit Airport. As we were switching from one terminal to another, we had to go through an underground tunnel. The thing was this tunnel had soft music and in was nice and cool, BUT the cool thing was that the walls changed colors! I stood at one end and took 3 pictures to show how it changes. Then I took one on the walkway inside to show the different colors and how it changes.

1 green

1 red

1 purp

1 hall

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