Major Engineering Events in History: The Empire State Building in 1931
About the major engineering events in history, the Empire State Building finished in 1931, the world's tallest building at the time.
1931 A.D. (The Empire State Building). Until December 14, 1970, the Empire State Building in New York City was the world's tallest inhabited structure, a reigning queen for almost 40 years. The tallest structure built since the construction of the Eiffel Tower, the Empire State Building proper reached a 1,250' height, while a 220' television antenna raised that height to 1,472'--over a quarter of a mile. Completed in 1931, the building contains 6,500 windows, 1,860 steps to the 102nd floor, 60 mi. of water pipes, and 10,000 tenants. Each year 1.5 million persons visit the building's 2 observatories, located on the 86th and 102nd floors. So named because New York is known as the Empire State, the famous queen is now surpassed by New York's World Trade Center Towers (with antenna 1,718'). The tallest man-made structure of all, however, is the antenna tower of television station KTHI-TV, located between Blanchard and Fargo, in North Dakota. This tower is 2,063' tall, and was constructed in 30 days at a cost of $500,000. The Empire State Building was built at a cost of $40,948,900, while the World Trade Center was completed at a cost of $650 million in 1973.
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