Boulogne Cathedral, officially known as Notre-Dame de Boulogne, is a Roman Catholic cathedral located in Boulogne-sur-Mer, France. It serves as the seat of the Bishop of Boulogne and is renowned for its stunning architecture, which combines elements from different periods, including Romanesque and Gothic styles. The cathedral was originally built in the 7th century and has undergone several renovations over the centuries. The cathedral features a striking bell tower that stands at 52 meters tall, offering panoramic views of the surrounding area. Inside, visitors can admire beautiful stained glass windows and intricate sculptures. Boulogne Cathedral is not only a place of worship but also a significant historical landmark, attracting tourists and pilgrims alike.