when was the twin towers built in new york city
World Trade Center (1973–2001) The original World Trade Center was a large complex of seven buildings in Lower Manhattan, New York City, United States. It featured the landmark twin towers, which opened on April 4, 1973, and were destroyed in 2001 during the September 11 attacks. At the time of their completion, the "Twin Towers"—the original 1 World Trade Center, at 1,368 feet (417 m); and 2 World Trade Center, at 1,362 feet (415.1 m)—were the tallest buildings in the world. Other buildings in the complex included the Marriott World Trade Center (3 WTC), 4 WTC, 5 WTC, 6 WTC, and 7 WTC. All were built between 1975 and 1985, with a cost of $400 million ($2,300,000,000 in 2014 dollars).[4] The complex was located in New York City's Financial District and contained 13,400,000 square feet (1,240,000 m2) of office space.[5][6]
List of tallest buildings in the United States As of 2018, One World Trade Center in New York City is considered to be the tallest skyscraper in the United States. Its spire brings the structure to a symbolic height of 1,776 feet (541 m), connoting the year The Declaration of Independence was signed, though the tip of the structure actually is measured at 1,792 ft (546 m).[3] However, using the more common criterion for the height of a building (the roof, not antenna) the observation deck elevation and highest occupied floor of One World Trade Center are surpassed by Chicago's Willis Tower (formerly and still commonly known as the Sears Tower)[4] and 432 Park Avenue.