World Trade Center

The World Trade Center is a partially completed complex of buildings in Lower Manhattan, New York City, U.S., replacing the original seven World Trade Center buildings on the same site that were damaged or destroyed in the September 11 attacks. The site is being rebuilt with five new skyscrapers, a memorial and museum to those killed in the attacks, and a transportation hub. One World Trade Center, the tallest building in the United States and North America, is the lead building for the new complex, reaching more than 100 stories upon its completion in November 2014.The original World Trade Center featured the landmark Twin Towers, which opened in 1973, and were the tallest buildings in the world at their completion. They were destroyed on the morning of September 11, 2001, when al-Qaeda-affiliated hijackers flew two Boeing 767 jets into the complex in a coordinated act of terrorism. The attacks on the World Trade Center killed 2,753 people. The resulting collapse caused structural failure in many of the surrounding buildings as well. The process of cleaning up and recovery at the World Trade Center site took eight months, after which rebuilding of the site commenced.