Muralla defensiva del siglo XIII Monument · Cumbres de San Bartolomé, Sierra de Huelva, Huelva Image of Cumbres de San Bartolomé, not of the place itself. Remains of the defensive wall built in the thirteenth century as part of the fortifications of this border stronghold following the Christian reconquest. Siglo XIII Photo: Estevoaei (CC BY-SA 4.0) What to see and do in Cumbres de San Bartolomé