Public art enthusiasts, rejoice: An online project called Mural Locator is committed to map and catalog public murals around the world. MuralLocator.org has information on murals in 40 countries, although the U.S. accounts for the bulk of the data so far. Not surprisingly most are clustered in major urban areas. Philadelphia leads the pack, boasting 76 so far. Tags in Alva, Oklahoma and Ely, Nevada attest to the diversity of locales mapped by mural locator contributors. A typical user-submitted entry includes location data, artist information and an image of the work. But it’s the description and historical context that make this tool an asset. As the catalog grows, Mural Locator could serve as a digital museum for public art worldwide.