Millions were touched by the events of September 11, and now they're getting a chance to understand the tragedy up close. A new exhibit by the New York State Museum, "Recovery: The World Trade Center Recovery Operation at Fresh Kills," debuted in August at the Western Reserve Historical Society in Cleveland and will travel across the country for the next three years to places like Cleburne, Texas, and Oak Ridge, Tenn. The exhibit includes striking photographs of the 1.8 million tons of debris, plus artifacts like building facades and mangled fire-truck parts. "When you see a few pieces and then see photographs of endless piles of debris," says exhibit organizer Mark Schaming, "you begin to more viscerally understand the magnitude of the disaster." Perhaps even more so than visiting the empty pit in lower Manhattan.