Defined by its strategic hilltop location as a fortress town, it was repopulated when the boundaries of Christendom reach the Duero. It is set in a natural landscape of immense ecological wealth.

Declared a Historic Site in 1974, the old quarter houses various monuments reflecting traditional Castilian architecture. The main square, known as Plaza de los Duques de Peñaranda, became the focal point of the town in the 16th century following the construction of the Palace and Collegiate Church by the Third Count of Peñaranda. This space, built entirely in the Renaissance style, is presided over by a civil building and a religious one, representing the old regime.

Other noteworthy sites include the castle situated on the hilltop, and other religious buildings standing on the outskirts, such as the Franciscan Conceptionist Convent, founded by the Count and Countess of Miranda in 1558, and associated with La Piedad Hospital and the Convent of El Carmen.