Église Saint-Omer de Lillers

The Église Saint-Omer de Lillers is a Romanesque church built on a Latin cross plan with high side aisles, several chapels, and a central square tower above the crossing. The structure displays substantial stonework and vaulted ceilings typical of its period.

Built between 1125 and 1135 by Lord Wenemar of Lillers following his pilgrimage to Rome, the church rests on 11th-century foundations. The patron brought back architectural ideas from the south that shaped the building's design.

The choir features carved capitals and 18th-century wooden furnishings, while stained glass windows show religious figures and scenes throughout the interior. These decorative elements shape how visitors experience the space today.

The church is accessible to visitors on designated days and provides a quiet setting to explore the architecture and interior features. Visitors should expect stairs and narrow passageways if they want to reach all areas.

This church is one of the largest remaining Romanesque structures in northern France and preserves medieval building elements despite numerous changes over centuries. This rarity makes it a notable example of its era's architecture in this region.