| http://www.w3.org/ns/prov#value | - The WTC actually consisted of seven buildings, including one hotel, spread across 16 acres of land.The buildings were connected by an underground mall (the concourse).The Twin Towers (1 WTC, or the North Tower, and 2 WTC, or the South Tower) were the signature structures, containing 10.4 million square feet of office space.
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