Destrucción francesa y derrumbe de El Tobón Historical milestone · Beas de Segura, Sierra de Segura, Jaén Image of Beas de Segura, not of the place itself. In November 1809 French troops destroyed much of the town, including the parish church; on 25 April 1869 the collapse of a structure at El Tobón, during the San Marcos festivities, caused 34 deaths. 1809 / 25 de abril de 1869 Photo: Cosasdebeas (CC BY-SA 4.0) What to see and do in Beas de Segura