SHARECOMMENTMORE

CHANTILLY, Va. (AP) - The Smithsonian Institution is celebrating the 10th anniversary of the National Air and Space Museum's facility in northern Virginia with a holiday concert presented by the U.S. Air Force Band.

Sunday marks the 10th anniversary of the Steven F. Udvar-Hazy Center in Chantilly, which has grown dramatically since 2003. When it opened, the center had less than 500 artifacts on display. Now it has more than 3,000.

Last year, space shuttle Discovery joined the museum collection when it was retired by NASA.

More than 13 million people have visited the massive air and space hangar since 2003. It is now the second-most-visited aviation museum in the country, second to the National Air and Space Museum on the National Mall. The Smithsonian says it is also Virginia's most-visited museum.