image/svg+xmlOpenclipartruin2008-01-24T01:19:18symbol for U.S. national park maps. PD US Government - National Park Service, U.S. Dept. of the Interiorhttps://openclipart.org/detail/11581/ruin-by-johnny_automaticjohnny_automaticcartographyexternalsourcemapparkpictographruinsymbol