Regional Heritage Sites

Explore the architectural evolution of the Opal Coast through its diverse heritage sites. This collection features the UNESCO-listed 12th-century Beffroi and the massive 19th-century dome of the Basilica of Notre-Dame. Military history is represented by the Column of the Grande Armée, Napoleonic fortifications, and Vauban’s coastal defense at Fort Mahon. Architectural styles range from the medieval foundations of Samer to the neo-Tudor aesthetics of Château d'Hardelot and the unique Egyptian-inspired Villa Le Typhonium.

Basilica of Notre-Dame, Boulogne

The Basilica of Notre-Dame, Boulogne, otherwise the Basilica of Our Lady of the Immaculate Conception, is a minor basilica located in…

Beffroi

A 12th-century former keep and the oldest part of the original count's castle. This UNESCO World Heritage site represents the civic and military history of Boulogne-sur-Mer.

Column of the Grande Armée

The Column of the Grande Armée is a 53 metre high Corinthian order triumphal column on the Rue Napoleon in Wimille, near Boulogne-sur-Mer,…

Château d'Hardelot

A 19th-century manor built in the Neo-Tudor style on medieval 13th-century foundations. It serves as a cultural center dedicated to Franco-British relations and the Entente Cordiale.

Fort Mahon

A 17th-century coastal fortification designed by Vauban. It was built at the mouth of the Slack River to protect a deep-water port intended for the French fleet.

Fort Henry VIII (Audinghen)

The ruins of a 16th-century English fortification built during the siege of Boulogne. It stands as a remnant of the military conflicts between Henry VIII and Francis I.

Église Saint-Pierre

A modern church rebuilt in 1960 after the destruction of the original village during World War II. It is noted for its distinctive architecture and large interior fresco.

Église Saint-Martin

This church stands on the site of a 12th-century chapel. It features a blend of medieval foundations and later expansions, having undergone significant restoration following damage in 1944.

Villa Le Typhonium

A unique private residence built in 1891 in the Neo-Egyptian style. Designed by architect Edmond De Vigne, it served as a home and studio for Belgian painters.

Église Saint-Nicolas

The oldest church in Boulogne-sur-Mer, dating back to the 13th century. While largely rebuilt in the 18th century, it retains historic statues and serves as the religious heart of the lower town.