KnoxNews: National: "Even at 10 stories high and three football fields long, the National Air and Space Museum's new center might not be the world's largest airplane hangar.

"But when its full complement of more than 200 aircraft and 135 spacecraft and related large artifacts are on display, the museum's annex on the edge of Washington-Dulles International Airport [IAD] will surely house the most diverse collection of flying machines ever assembled.

"The new museum, named for Steven F. Udvar-Hazy, an aviation executive who donated $65 million toward the $311 million center, opens to the public Dec. 15, two days before the 100th anniversary of powered flight is celebrated with a re-enactment of the Wright brothers first flights at Kitty Hawk, N.C."