https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/9199043
Graphic illustrations of the Colosseum, Regent's Park, in five plates, from drawings by Gandy, Mackenzie, and other eminent artists.
Original public domain image from Yale Center for British Art
Public DomainFree CC0 image for Personal and Business use