The Crypt of Boulogne-sur-Mer

Free admission

• Free under 18Free every day for visitors under 18At the Crypte de Boulogne-sur-Mer; no monthly free day there — the first Sunday is reduced rate (2 €), not free.

Address

Rue de Lille, 62200 Boulogne-sur-Mer

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A vast underground network laid out in the 19th century beneath the Basilica of Notre-Dame, layering Roman remains, a Romanesque crypt and galleries entirely covered with frescoes. Around one hundred and fifty pieces of sacred art are displayed there, including the reliquary of the Holy Blood given by Philip the Fair in 1308.

More free museums nearby

• Boulogne-sur-Mer Castle MuseumBoulogne-sur-MerFree 1st Sunday
• The School-Museum of Boulogne-sur-MerBoulogne-sur-MerFree under 18
• Grande Armée Column at WimilleWimilleSpecial days only
• International City of Lace and Fashion, CalaisCalaisFree 1st Sunday
• Calais Fine Arts MuseumCalaisAlways free
• Hôtel Sandelin MuseumSaint-OmerFree one day a week

All free museums in Boulogne-sur-MerAll free museums in Pas-de-Calais