The World Trade Center is a mostly completed complex of buildings in the Lower Manhattan neighborhood of New York City, replacing the original seven buildings on the same site that were destroyed in the September 11 attacks of 2001. The site is being rebuilt with up to six new skyscrapers, four of which have been completed; a memorial and museum to those killed in the attacks; the elevated Liberty Park adjacent to the site, containing the St. Nicholas Greek Orthodox Church and the Vehicular Security Center; the Perelman Performing Arts Center; and a transportation hub.