Port Authority vision to revitalize Lower Manhattan. Architect Minoru Yamasaki, engineer Fazlur Khan. Twin Towers (1,368 ft / 110 stories) completed 1973—world's tallest until 1974. Complex included 5 low-rise buildings + Marriott Hotel.
Icon of American economic power, globalization, and engineering ambition. Also criticized for scale, aesthetics, and vulnerability.
Truck bomb in North Tower garage (Feb 26). 6 killed, 1,000+ injured. Mastermind: Ramzi Yousef (Al-Qaeda linked). Exposed security gaps.
Hijacked AA11 & UA175 struck North & South Towers. Intense fires weakened steel; both towers collapsed (10:28 & 9:59 AM). 2,753 dead at WTC. WTC 3, 4, 5, 6, 7 destroyed/damaged.
The WTC story: ambition → tragedy → resilience → renewal.