Tomb of General Ulysses S. Grant, Riverside Drive, New York City / Grant Wright, 1897. https://www.rawpixel.com/image/7691305/image-art-vintage-public-domainFree Image from public domain licenseCentennial building. General view. Centennial building, Machinery Hall. Sunset view / Howe. https://www.rawpixel.com/image/7691112/image-art-vintage-public-domainFree Image from public domain license