In many Spanish cities, tapas tours or "las ruta de tapas" have become very popular. What began as word of mouth from one customer to another has become a tourist attraction in many cities. Gastro-tourism guides and maps have even been created to list the specialties of each bar. Highlights include the street called Calle Laurel in Logroño (La Rioja), the old town in San Sebastián, and the so-called "Barrio Húmedo" or "wet district" in León (famed for its many bars and taverns).