The abbey has been built and rebuilt over a period of at least 15 centuries.
Excavations on the site have revealed a baptistry dating to the 4th and 5th centuries, a series of four main Carolingian era churches built over one another dating from the 5th to the 11th century, and crypts built between the 4th and 8th century.

The current church was first built in the 17th century while the tower dates to the 11th century.
Preceding Clermont-Ferrand Cathedral in 946, Chartres Cathedral ca.
1020 and Rouen Cathedral ca.
1030, the abbey was an early example of an ambulatory plan with radiating chapels.

The Romanesque tower was reconstructed in 1945 to repair damage caused by a massive falling rock.
The newly installed carillon is the largest built to date in Switzerland.
The abbey has been built and rebuilt over a period of at least 15 centuries. Excavations on the site have revealed a baptistry dating to the 4th and 5th centuries, a series of four main Carolingian era churches built over one another dating from the 5th to the 11th century, and crypts built between the 4th and 8th century.
The current church was first built in the 17th century while the tower dates to the 11th century. Preceding Clermont-Ferrand Cathedral in 946, Chartres Cathedral ca. 1020 and Rouen Cathedral ca. 1030, the abbey was an early example of an ambulatory plan with radiating chapels.
The Romanesque tower was reconstructed in 1945 to repair damage caused by a massive falling rock. The newly installed carillon is the largest built to date in Switzerland.
Abbey of Saint-Maurice d'Agaune