Plasencia City Walls were built in the late 12th century by Alfonso VIII of Castile, who founded Plasencia to protect his western border. The original perimeter was around 2.4 kilometers long. Towers with semicircular floors reinforced the walls and 26 of the original towers are still preserved. To visit the Wall of Plasencia visitors must stroll through the center of the old city and pass through any of the eight existing doors, gates and wickets. A walks through the barbican is an experience to enjoy.
Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).