Église Saint-Nicolas

The church of St Saturnin was built between the 10th and 11th centuries as a modest place of worship. It was not until the 15th and 16th centuries that it became an important place of worship, when the church acquired a miraculous statue of the Virgin, making it an important stop on the Way of St. James. At the beginning of the 16th century, Queen Anne of Brittany undertook reconstruction work on the church, but this was interrupted when she died in 1514. During the Wars of Religion, Protestants set fire to the building's roof structure in 1568. A reconstruction project at the beginning of the 16th century was set up and completely changed the style of the church with the creation of groin vaults between 1570 and 1578.

The construction of this cathedral took a very long time, since it began in the 12th century, but was not completed until six centuries later, in the 18th century. Several campaigns of work follow one another, mixing several architectural styles.

The Basilica of Our Lady of the Trinity was built between 1932 and 1939 by the architects Charles-Henri Besnard and Paul Rouvière. Due to the Occupation, the work could only be resumed in 1946 with a third and final architect, Yves-Marie Froidevaux, who devoted himself to completing the interior decoration. The Basilica of Notre-Dame-de-la-Trinité is considered to be a major building of sacred art in the inter-war period.