Madrid, New Mexico, has not grown much since starting as a coal mining town in the 1850s. Many of its 150 citizens cater to tourists driving by. Route 14 is lined with artisans in historic buildings. An example is the Old Boarding House Mercantile. Among the novelties for sale are memorabilia from a biker movie filmed there in 2007. “Wild Hogs” stared John Travolta and Tim Allen.