Tower of Voices

Look at and listen to the wind chimes in the Tower of Voices, memorializing the heroes of Flight 93 at Shanksville. "The 40 chimes, [architect Paul Murdoch]  says, symbolize the voices of the 40 passengers and crew members, many of whom called their loved ones after the plane was hijacked."

If not for their heroism and sacrifice in preventing the terrorists from flying into the U.S. Capitol on September 11, we would be living in a much different country today. It's frightening to imagine the death toll and the consequences had they succeeded.