Metropolitan folklore and folklife studies often focus on ethnic, religious, and occupation-centered neighborhoods and their distinctive festive events. The material culture of streets and lots has also led to documentation of folk arts, vernacular structures, and customs that have been adapted to this environment. Examples include sidewalk altars in New York City, painted screens in Baltimore, and storefront churches in Los Angeles. In addition, beginning in the late twentieth century, both urban and suburban folklife studies took on the tinge of consumer culture as tradition and mass media mixed freely in commercial centers. Furthermore, the longstanding critique of suburbia as a homogenizing force has itself become embedded in American legend and belief, but suburbs have developed their own traditions of cookouts, malls, yard art, lawn care, car culture, and other modes of “hanging out.”