The ugly horror of the September 11, 2001 terror attacks will always remain a dark memory. But the heroism that rose up to counter that evil deserves our honor and admiration.

This is the ill-fated Flight 93 airplane itself, on Sept. 8, 2001 (MacMax, via Wikimedia Commons)

One of the first places where heroic spirits stood against terror was on United Airlines Flight 93. Passengers and crew, aware of what had happened to hijacked planes earlier that day, forced the terrorists to crash it near Shanksville, PA, rather than add to the catastrophes at the World Trade Center and the Pentagon.

The smoking crater from that day (David Maxwell/AFP/Getty Images)

Yesterday, Sept. 10, 2015, The Flight 93 Memorial Center officially opened, 14 years after the passengers and crew made their last stand. I’m offering these photos of the new center as a grateful tribute to them.

Black granite marks the plane’s path (AP/Keith Srakocic). 
Granite path and two sets of walls at the Flight 93 Memorial (AP/Gene L. Puskar)

IMAGES: Many thanks to Wikimedia Commons and contributor MacMax, for the image of the plane; to CBS New York for the image of the smoking crater; to New Jersey 101.5, for the first “granite path” image and to Capital Public Radio for the second image from the Memorial.