Did not know this existed!
The National Veterans Art Museum, formerly the National Vietnam Veterans Art Museum, located at 4041 N. Milwaukee Avenue in Chicago’s six corners neighborhood, is dedicated to displaying and studying art produced by veterans from the Vietnam War and other wars and conflicts. Originally a traveling exhibition, while in Chicago it was viewed by Mayor Richard M. Daley, who was so taken by the power of the art that he immediately insisted that the city provide a permanent home for it. The entrance hall has 58,226 dog tags hanging from the ceiling, representing the US soldiers who died in Vietnam. It and the other exhibits have been described as deeply moving. Wikipedia
When visitors first enter the museum, they will hear a sound like wind chimes coming from above them and their attention will be drawn upward 24 feet to the ceiling of the two-story high atrium.
Dog tags of the more than 58,000 service men and women who died in the Vietnam War hang from the ceiling of the National Vietnam Veterans Art Museum in Chicago on Veterans Day, November 11, 2010. The 10-by-40-foot sculpture, entitled Above & Beyond, was designed by Ned Broderick and Richard Stein.
The tens of thousands of metal dog tags are suspended 24 feet in the air, 1 inch apart, from fine lines that allow them to move and chime with shifting air currents. Museum employees using a kiosk and laser pointer help visitors locate the exact dog tag with the imprinted name of their lost friend or relative.
Source: Email chain thanks Brian.