September 11, 2001 marks a pivotal time in the nation’s history. Despite the unimaginable tragedy inflicted by the attacks on that day, Americans have continued to demonstrate their resiliency in the face of devastation. Today, New York City leaves behind a lasting legacy of renewal and strength. In commemoration of the 15th anniversary of 9/11 this year, here are seven ways to honor and remember those who lost their lives:

1. WTC PATH Train Cars

Two PATH Train cars that were trapped beneath the World Trade Center are now on view at two trolley museums outside of New York City. PATH train Car 745 at the Shore Line Trolley Museum in East Haven, Connecticut will be opened to the public for the first time on the 15th anniversary of 9/11. A ribbon cutting ceremony dedicated to PATH car 143 at the Kingston Trolley Museum in the Hudson Valley will also be held on the same day.

Read more about the two PATH train cars here.