
Created by Matharoo Associates for a diamond merchant in India, the door is a whopping 17 feet high and five-and-a-half feet wide, and comprises 40 sections of Burmese teak, each of them nearly a foot thick. Each section revolves around some pretty complex machinery: The door's single pivot hides a counterweight, 80 ball bearings, 160 pulleys, a wire-rope and a counter weight hidden within the single pivot.



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