Is 1,000 stones as heavy as The Sears Tower?
It's about one-thirty-thousandth as heavy as The Sears Tower
The weight of The Sears Tower is about 31,780,000 stones.
(officially "Willis Tower" as of 2009) (Chicago, Illinois)
The Willis Tower weighs approximately 31,780,000 stones. The outer wall surface of the Tower is covered with black anodized aluminum panels which would total 110,000 sq. m (28 acres) if laid out together.
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