As an add on to Geoffa's fact about the red carpe, Disney consulted Kodak who worked on the exact shade of red to enhance visitors photographs against the surrounding backdrop.
On the Tribute Windows, the highest on Main Street belongs to Frank Wells (a past C.O.O.) due to his love of mountaineering. He actually climbed 6 of the 7 highest mountains in each of the continents one year just failing on Everest.
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I didn’t know that last one regarding the highest window, I will look out for that when I’m back.