Tower and Portal of San Martín Monument · Ocaña, Mesa de Ocaña, Toledo 16th-century Plateresque remains of an earlier, now vanished, church in Ocaña, preserved as a testimony to the town's rich religious heritage. The tower of the old church of San Martín was declared a Bien de Interés Cultural (Spain's highest level of heritage protection) in 1993, a recognition that protects this vestige as one of the municipality's protected heritage elements. Photo: Adercilla (CC BY-SA 3.0) What to see and do in Ocaña