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  1. At the time of their completion, the Twin Towers—the original 1 World Trade Center (the North Tower) at 1,368 feet (417 m), and 2 World Trade Center (the South Tower) 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.

    • 1 and 2 WTC: 110 floors, 3 WTC: 22 floors, 4 and 5 WTC: 9 floors, 6 WTC: 8 floors, 7 WTC: 47 floors
    • Willis Tower
    • World Trade Center: A Dream Is Born
    • The Port Authority Signs on
    • Sights Set on Record-Breaking Height
    • Feats of Engineering at The World Trade Center
    • World Trade Center: A Dream Come True
    • 1993 Bombing of The World Trade Center
    • The World Trade Center on September 11th
    • One World Trade Center
    • Rebuilding The World Trade Center

    The 1939 New YorkWorld’s Fair included an exhibit called the World Trade Center that was dedicated to the concept of “world peace through trade.” Seven years later, one of the exhibit’s organizers, Winthrop W. Aldrich, headed a new state agency with the proposed goal of creating a permanent trade exposition based in New York. Market research indica...

    For the resources and power to make the project work, Rockefeller turned to the Port of New York Authority. The Port Authority had been chartered in 1921 by New York and New Jersey to build and operate all transportation terminals and facilities within a 25-mile radius of the Statue of Liberty. By 1960, after constructing the Lincoln Tunnel and the...

    By this time, the Port Authority had decided that the trade center should replace the 1,250-foot-high Empire State Building, built in 1931, as the world’s tallest building. To fulfill the Port Authority’s requirement, architect Minoru Yamasaki designed two towers of 110 stories each. Instead of the traditional stacked glass-and-steel box constructi...

    Because the ground in lower Manhattan was largely landfill, engineers would have to dig down 70 feet to reach bedrock. Excavating machines dug a three-foot-wide trench down to the bedrock, and as dirt and rock were removed, they were replaced by slurry: a mixture of water and bentonite, a type of clay that expands when wet to plug any hole along th...

    The last piece of steel was put in place on the north tower (One World Trade Center) on December 23, 1970; the south tower (Two World Trade Center) was topped off in July of the next year. Construction went on until April 1973, when the five-acre outdoor plaza, dominated by a 25-foot-tall bronze sculpture by Fritz Koenig, was completed. At the offi...

    The first major test of the trade center’s structural integrity came on February 26, 1993, when a bomb with the destructive power equal to 2,200 pounds of TNT exploded in the parking garage of the second floor basement of the north tower. The blast killed six people, injured more than 1,000 others and caused an estimated $600 million in damage. Six...

    In July 2001, just two months before the terrorist attacks of September 11, the Port Authority agreed to lease the twin towers to Larry Silverstein, a New York Citydeveloper. Silverstein agreed to pay the equivalent of $3.2 billion over the next 99 years. At the time, over 99 percent of the 10.4 million square feet controlled by the Port Authority ...

    That hole in the sky would eventually be filled by One World Trade Center, or “The Freedom Tower,” which rises even higher than the Twin Towers it was built to honor. At a symbolic 1,776 feet tall, One World Trade is the tallest building in the United States and Western Hemisphere, overtaking Sears Tower in Chicago. Built on the original 6 World Tr...

    A new tower at 7 World Trade Center opened in 2006. The $2 billion 4 World Trade Center followed in 2013. The World Trade Center Oculus, a glass and steel transit concourse and shopping center designed by the Spanish architect Santiago Calatrava, opened to the public in 2016, while the 1,155 foot tall 3 World Trade Center opened in 2018. Silverstei...

  2. 3 de ene. de 2024 · The twin towers of the World Trade Center and the Lower Manhattan skyline as they appeared before the September 11, 2001, attacks. World Trade Center, complex of several buildings around a central plaza in New York City that in 2001 was the site of the deadliest terrorist attack in American history. ( See September 11 attacks .)

    • The Editors of Encyclopaedia Britannica
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  3. The Twin Towers II (also known as Twin Towers 2, New Twin Towers, Trump Twin Towers, World Trade Center Phoenix and Michael W. Diamond Twin Towers) was a proposed twin-towered skyscraper complex which would have been located at the World Trade Center site in Manhattan, New York City.

    • Twin Towers 2, New Twin Towers
    • Office, observation, communication
    • Plan of the People (original), World Trade Center Phoenix
  4. 8 de sept. de 2021 · September 13, 2021 at 2:03 PM PDT. In the 1990s, there was no New York City skyline without the Twin Towers. They hobnobbed with Lady Liberty and the Empire State Building on any souvenir plate...

  5. El World Trade Center (en castellano, «Centro Mundial de Comercio») fue un complejo de edificios en Manhattan, ciudad de Nueva York, Estados Unidos, que incluía a las emblemáticas Torres Gemelas, inauguradas el 4 de abril de 1973 y destruidas en los atentados del 11 de septiembre de 2001, junto con el World Trade Center 7. 2 3 Los otros edif...

  6. 2 de sept. de 2021 · The Twin Towers’ innovative design, which placed structural load on the outside columns rather than inside pillars, facilitated the owners’ desire for a maximum amount of rentable space.

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