Collégiale Notre-Dame à Cassel

Collégiale Notre-Dame à Cassel is a church with Gothic architecture featuring three naves of equal height unified beneath a square tower positioned above the choir. The interior is marked by an 18th-century marble altarpiece that serves as a visual focal point.

The church was founded in the 10th century and experienced multiple periods of destruction and reconstruction throughout its existence. During the French Revolution, it was repurposed as a stable, prison, and hospital before eventually returning to religious use.

The church is dedicated to the cult of Notre-Dame de la Crypte, a form of Marian devotion that has drawn pilgrims for centuries. This connection to local religious practice shapes the way visitors experience the building and its role in the spiritual life of the town.

The interior is open to visitors who wish to appreciate the architecture and furnishings at their own pace. Religious observances take place regularly throughout the year, offering chances to witness local traditions.

Marshal Foch prayed daily before the statue of Notre-Dame de la Crypte during World War I, linking his military service with personal devotion. This habit of a celebrated military leader left a lasting mark on how locals remember the church's role during wartime.