The World Trade Center was a complex of seven buildings in Lower Manhattan, New York City, most famously known for its twin towers that were completed in the early 1970s. These towers symbolized America's economic power and global trade, housing offices for numerous businesses and serving as a hub for international commerce. The significance of the World Trade Center was tragically underscored during the September 11 attacks in 2001, when terrorists hijacked planes and crashed them into the towers, leading to their collapse and a profound impact on U.S. security and foreign policy.