Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
artistic artwork brick building canalization caricature caution circle city construction creative danger design doodle draw drawn entry equipment freehand graphic hand hatch heavy hole hurdle illustration image industrial industry iron lid linework manhole metal metallic open quirky round scratchy sewer sewerage sketch sketchy steel street surface system under underground urban vector