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Hoover Dam is as tall as a 60-story building. It was the highest dam in the world when it was completed in 1935. Its base is as thick as two football fields. Each spillway, designed to let floodwat…
Hoover Dam is as tall as a 60-story building. It was the highest dam in the world when it was completed in 1935. Its base is as thick as two…
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Building the Hoover Dam seen through rare photographs, 1931-1936
Unveiling History: The Construction of Hoover Dam in Rare 1931
Building the Hoover Dam seen through rare photographs, 1931-1936
What are some interesting facts about the Hoover Dam? - Quora
Building the Hoover Dam seen through rare photographs, 1931-1936
Building the Hoover Dam seen through rare photographs, 1931-1936
Building the Hoover Dam seen through rare photographs, 1931-1936
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