Albayacín Street Monument · Letur, Sierra del Segura, Albacete Image of Letur, not of the place itself. A dead-end alley considered the finest example of Islamic architecture in Letur, with five neighbouring doorways of round arches that serve as entrance halls to the houses. Photo: No machine-readable author provided. Lionni assumed (based on copyright claims). (Public domain) What to see and do in Letur