The 40-foot recreational craft Invictus burns on the water north of Protection Island, Wash., June 11, 2018. https://www.rawpixel.com/image/3318768/free-photo-image-oil-spill-battleship-boatFree Image from public domain licenseEl Morro, the historic Spanish fort from the sea. San Juan, Puerto Rico. Sourced from the Library of Congress. https://www.rawpixel.com/image/12322767/image-cloud-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: El Morro, the historic Spanish fort from the sea. San Juan, Puerto Rico]. Sourced from… https://www.rawpixel.com/image/12271503/photo-image-cloud-sky-public-domainFree Image from public domain license