With seven buildings and a shopping concourse, the World Trade Center in lower Manhattan was the largest commercial complex in the world before it was destroyed in the September 11, 2001, terrorist attacks. Its most prominent structures were the 110-story rectangular Twin Towers, which, at more than 1,360 ft (415 m) tall, were the tallest buildings in the world until the Sears Tower surpassed them in 1974. How did the construction of the complex lead to the expansion of the island of Manhattan? Discuss
Source: The Free Dictionary