Building WTC Part 2

From Wikipedia, the free encyclopedia: The World Trade Center (WTC) was a complex of seven buildings in Lower Manhattan in New York City that were destroyed in the September 11, 2001. The original World Trade Center was designed by Minoru Yamasaki in the early 1960s using a tube-frame structural design for the twin 110-story towers. The North Tower (1) was completed in December 1970 and the South Tower (2) was finished in July 1971. The construction project involved excavating a large amo