Associated Press

A view of the exterior of St. Paul's Chapel. Photo courtesy of Trinity Church Wall Street/Leo Sorel.

The Lens: Viewing the 9/11 Memorial

Visitors walk around the 9/11 Memorial's two massive reflecting pools set within the original footprints of the twin towers. (AP photo/Mark Lennihan)

AP: Another 9/11 Anniversary is Recognized Today

A 9/11 Memorial Museum exhibition design study includes a piece of remnant WTC steel used to project video footage of the recovery effort. (Courtesy Thinc Design with Local Projects)