The blog 16 Miles has created a featuring all the lost art of New York City, from Diego Rivera’s Man at the Crossroads to the fictional address of Marcel Duchamp’s The Teeth’s Loan & Trust Company Consolidated. According to 16 Miles, the map will be “documenting the sites of performances, studios, public art installations, residences, and galleries that once existed in New York and now do not.” The map will be continuously updated so make sure and check back periodically to spot new sites.