New York City has changed in many ways in the 25 years since the Sept. 11 terrorist attacks. The area surrounding the former site of the World Trade Center may be among the most transformed parts of the city since that tragic day in 2001. ↧ 9/11 then and now: Photos show how the World Trade Center area has ... Photos from the Sept. 11, 2001, attack on the World Trade Center and photos taken in 2026 show how New York City's Lower Manhattan has changed in 25 years.