On the building's main concourse is the Hall of Heroes, opened 1968[45] and dedicated to the more than 3,460 recipients of the Medal of Honor,[note 1] the United States' highest military decoration.[48][49][50][51][52] The three versions of the Medal of Honor – Army, Sea Service (for the Marine Corps, Navy, and Coast Guard), and Air Force (for the Air Force and Space Force) – are on display along with the names of recipients.[51]
The Hall is also used for promotions, retirements, and other ceremonies.[53][54][55][56][57]