Hoover Dam is 726 feet tall and 660 feet thick at its base. Enough rock was excavated in its construction to build the Great Wall of China. Contrary to old wives' tales, no workers were buried in the dam's concrete.
Hoover Dam is 726 feet tall and 660 feet thick at its base. Enough rock was excavated in its construction to build the Great Wall of China. Contrary to old wives' tales, no workers were buried in the dam's concrete.
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