Since the public opening on April 4, 1973, New York's iconic Twin Towers remained a symbol of the city up until the tragic September 11 attacks. Take a look back at the iconic structures ...

Not long ago, a jaw-dropping image flashed across my phone screen – a breathtaking shot of the Twin Towers in Manhattan ...

NEW YORK (CNN) -- Debris continued crumbling Tuesday night at ... The two largest buildings, the twin towers, collapsed. The complex also includes a 47-story high-rise building, a 22-story structure, ...