above the triple doors to the lobby is the famous Bas-relief of the Spirit of St.Louis crossing the Atlantic with Ireland in sight. A bas-relief sculpture is raised or sunken and not a flat piece of artwork. Carthalite was used to for the bas-relief to provide longevity and maintain the color vitality. Carthalite is white portland cement concrete with colored glass aggregates. The Kansas Aviation Museum is one of only a few museums that allow visitors to enter its exhibition aircraft. The museum operates a once yearly "Play on a Plane Day". Gallery See also Cosmosphere in Hutchinson Combat Air Museum in Topeka Mid-America Air Museum in Liberal Kansas World War II army airfields List of aerospace museums List of museums in Kansas References External links Wings Over Kansas: Aviation Hall of Fame Inductees 1986–1999 List Administrative Building from the National Park Service site Aviation: From Sand Dunes to Sonic Booms: A National Register of Historic Places Travel Itinerary [ Administrative Building NRHP Application (12 page PDF)] - National Park Service Aerospace museums in Kansas Museums in Wichita, Kansas Military and war museums in Kansas Art Deco airports Art Deco architecture in Kansas National Register of Historic Places in Wichita, Kansas Air transportation buildings and structures on the National Register of Historic Places Military facilities on the National Register of Historic Places in Kansas