The Puente de Alcántara is a Roman arch bridge in Toledo, spanning the Tagus River. The word Alcántara comes from Arabic القنطرة (al-qanţarah), which means 'bridge'.
Located at the feet of the Castillo de San Servando, the bridge was originally built by the Romans after they founded the city. It was rebuilt by in the 9th and later in the 13th century by Alfonso X el Sabio. In the Middle Ages it was one of the few entrances of the pilgrim into the city.
References:The Château de Foix dominates the town of Foix. An important tourist site, it is known as a centre of the Cathars. Built on an older 7th-century fortification, the castle is known from 987. In 1002, it was mentioned in the will of Roger I, Count of Carcassonne, who bequeathed the fortress to his youngest child, Bernard. In effect, the family ruling over the region were installed here which allowed them to control access to the upper Ariège valley and to keep surveillance from this strategic point over the lower land, protected behind impregnable walls.
In 1034, the castle became capital of the County of Foix and played a decisive role in medieval military history. During the two following centuries, the castle was home to Counts with shining personalities who became the soul of the Occitan resistance during the crusade against the Albigensians.