Each of the WTC towers had 110 stories. Tower One (the North Tower, which featured a massive 360 foot high TV antenna added in 1978) stood 1,368 feet (417 m) high, and Tower Two (the South Tower, which contained the observation deck) was 1,362 feet (415 m) high. The length and breadth of the towers were 208 feet (63.4 m) x 208 feet (63.4 m). Although only Tower 1 featured an antenna, the structure of both buildings were designed to carry a broadcast mast.
Sixty-eight miles of steel were used in the construction of the buildings.
In addition to the towers, five other office buildings made up the WTC complex
The WTC had 12 million square feet of space.
The buildings had their own ZIP codes - 10047 and 10048.
The north tower was opened in Dec. 1970 and the south tower in Jan. 1972; they were dedicated in April 1973.
The 1993 bombing of the WTC killed six people and injured 1,000 more. 1,300 pounds of explosives ripped through the garage in the 1993 attack.
12 mountain climbers scaled the outside of the towers.
60,000 tons of cooling capacity generated by the World Trade Center’s refrigeration plant—the largest in the world.
It was the first skyscraper in the world destroyed by terrorists.