NEW YORK - Tour guides at Ground Zero are making sure victims' spirits live on.

There are 560 volunteer tour guides at Ground Zero. Many of them are emergency responders, office workers and family members of the fallen.

Caitlin Langone, of Williston Park, is one of the guides. She was 12 years old when her father Tommy, an NYPD officer, was killed in the twin towers' collapse. Her uncle, Peter, an FDNY firefighter, also died.

About 60,000 people have taken the tour since the 9/11 Tribute Center began the program eight years ago.