Washington and His Staff at Valley Forge by Veron Fletcher and Edward Moran, Smithsonian National Museum of African Art https://www.rawpixel.com/image/8849946/image-background-art-vintageFree Image from public domain license Even though there are other celebrity-saluting murals, including those of actor John Wayne and… https://www.rawpixel.com/image/8070391/photo-image-star-face-personFree Image from public domain licenseA U.S. Army AH-64 Apache helicopter assigned to the 1st Stryker Brigade Combat Team, 4th Infantry Division flies over an… https://www.rawpixel.com/image/8728004/photo-image-public-domain-united-statesFree Image from public domain licenseService members cheer during the 14th Annual Tribute to the Troops Event at the Verizon Center in Washington, D.C., Dec. 13… https://www.rawpixel.com/image/3317950/free-photo-image-concert-crowd-wweFree Image from public domain licensePilot flies an airplane inside the cockpit. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296098/free-photo-image-pilot-creative-commons-adventureFree Image from public domain licenseOne-mule drag. Wayne County, North Carolina. Sourced from the Library of Congress. https://www.rawpixel.com/image/12267905/photo-image-plant-grass-horseFree Image from public domain license