Placeholder image is a free service intended to help web integrators in the creation of sites by allowing on-the-fly generation of random images of desired dimensions.
http://placeholderimage.eu/api/monument/id/0/260/260
http://placeholderimage.eu/api/monument/id/1/260/260
http://placeholderimage.eu/api/monument/id/2/260/260
http://placeholderimage.eu/api/monument/id/3/260/260
http://placeholderimage.eu/api/monument/id/4/260/260
http://placeholderimage.eu/api/monument/id/5/260/260
http://placeholderimage.eu/api/monument/id/6/260/260
http://placeholderimage.eu/api/monument/id/7/260/260
http://placeholderimage.eu/api/monument/id/8/260/260
http://placeholderimage.eu/api/monument/id/9/260/260
http://placeholderimage.eu/api/monument/id/10/260/260
http://placeholderimage.eu/api/monument/id/11/260/260
http://placeholderimage.eu/api/monument/id/12/260/260