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23/12/1970 The North Tower of the WTC become world's highest

The North Tower, the tallest building in the world at 1,368 feet by the time of its completion, began construction in 1966. The North Tower also featured a telecommunications antenna or mast that was added at the top of the roof in 1978 and stood 362 feet tall.


  • Essentials 

  • Before the World Trade Center 

  • Design and construction 

  • Complex 

  • Operating history 

  • Destruction 

  • New World Trade Center 

  • Impact