Iglesia de San Mateo Monument · La Puerta de Segura, Sierra de Segura, Jaén Image of La Puerta de Segura, not of the place itself. Church built over the ruins of an earlier one, razed in 1810, and rebuilt by Infante Don Francisco de Paula in 1821. Photo: Centro Guadalinfo (GFDL 1.2) What to see and do in La Puerta de Segura