Marlon Brando filmed Viva Zapata! here, and you can see old movie posters in the Roma Historical Museum, housed in a building near the Plaza that was once a Mission church. Founded in 1765, Roma's bustling riverboat era has left architectural parallels to New Orleans; note, for example, the iron grillwork on the much-photographed and atmospheric Manuel Guerra Residence and Store. This building and five others in the Historic District's Plaza area were designed by Heinrich Portscheller, a German immigrant in the 1880s, using traditional brick building methods borrowed from Northern Mexican design. Altogether there are 38 historic properties that can be seen by car or on foot in the four areas that make up this National Historic Landmark District: the Plaza, Wharf, Customs House, and Northwestern areas. To appreciate the classical details on Portscheller's buildings, however, you’ll need to get out and stroll!