Sept. 11 Anniversary - Photo Gallery 9/33

A rider from the Ride 2 Recovery 9/11 Challenge walks through the Empty Sky memorial in Liberty State Park Sunday Sept. 11, 2011 in Jersey City, N.J. From Liberty State Park the ride will go to the United 93 Memorial in Shanksville, Pa., and then on to the Pentagon in Washington DC, a total of 530 miles in 8 days. (AP Photo/Joe Epstein)