A Medical HMMWV from the 2-102nd Cavalry of the New Jersey National Guard's 50th Infantry Brigade Combat Team sits ready to… https://www.rawpixel.com/image/4031830/photo-image-person-work-manFree Image from public domain licenseTraining in marksmanship helps girls at Roosevelt High School in Los Angeles, Calif., develop into responsible women. Part… https://www.rawpixel.com/image/8765672/photo-image-sparkle-hamburgers-vintageFree Image from public domain licenseCalliope Hummingbird — Selasphorus calliope. Original public domain image from Flickr https://www.rawpixel.com/image/8732323/photo-image-tree-public-domain-birdFree Image from public domain license