We were surprised that the oldest historic district of Tucson, El Presido, is not all that large. There is one block of artisan shops which are located in some old buildings. Markings on the sidewalks around this area indicate where the old city wall use to be. While strolling through the area we found the La Casa Cordova house, which is one of the oldest structures to be found in Tucson. Its front two rooms were built in 1854, the back rooms in 1879.