Here's how Manhattan's skyline has changed in the 25 years since the 9/11 attacks

Over the last 25 years, Manhattan has undergone significant changes, particularly at Ground Zero, where the Freedom Tower now stands in remembrance. Beyond the skyline, the September 11 attacks triggered major U.S. security reforms across the country. These transformations reflect both the physical reconstruction of the city and the systemic shifts in national safety protocols implemented in the wake of the terrorist attacks to prevent future incidents and honor the victims of the tragedy.