Flight 93 Memorial is at jct. Alvarado-Niles Rd. and Dyer St. in Sugar Mill Landing Park. It was built for the 40 passengers and crew of the fourth plane hijacked on Sept. 11, 2001, which crashed in a Shanksville, Pa., field. The flight was bound for San Francisco International Airport, and the memorial honors and remembers its passengers and crew, many of whom were from the San Francisco Bay Area.
A flowing line of 40 individual granite stones represents each person aboard the flight; each stone is engraved with the hero's name, age and hometown. At the memorial entrance is the Circle of Remembrance; in the middle of the circle stands the Tree of Remembrance, surrounded by three granite stones depicting the flight, the story of the memorial and the names of donors/sponsors.
At the memorial's opposite end is the Circle of Hope, where a U.S. flagpole is encircled by handmade tiles created by local children that show images of their vision for the future. Six benches at the site allow visitors to pause for reflection.