Pan of Rohallion by Frederick William MacMonnies (Sculptor) https://www.rawpixel.com/image/8939542/pan-rohallion-frederick-william-macmonnies-sculptorFree Image from public domain licenseWashington, Crossing the Delaware–On the Evening of Dec. 25th 1776, previous to the Battle of Trenton. https://www.rawpixel.com/image/9614009/image-person-art-vintageFree Image from public domain licenseRobert Burns and His Highland Mary, Lithographed and published by Nathaniel Currier (American, Roxbury, Massachusetts… https://www.rawpixel.com/image/9613758/image-mary-campbell-lithographs-british-born-scotlandFree Image from public domain licenseRuins of Richmond & Petersburg Railroad Bridge, Richmond, Virginia https://www.rawpixel.com/image/12851982/ruins-richmond-petersburg-railroad-bridge-richmond-virginiaFree Image from public domain license