History: Collapse Of The World Trade Center, September 11, 2001, Lower Manhattan, New York City, United States

Rebuilding
After years of delay and controversy, reconstruction at the World Trade Center site is now well underway. The new complex will include One World Trade Center (formerly known as the Freedom Tower), 7 World Trade Center, three other high-rise office buildings, a museum and memorial, and a transportation hub similar in size to Grand Central Terminal. Both One and Four World Trade Center are on track for completion and occupancy by 2013. The 9/11 memorial is complete, with the museum set to open in 2012. Two and Three World Trade Center, as well as the Transportation Hub, are also making progress, set to be finished by around 2015.