Guided tour of the town hall — National Architecture Days 2026
Visite guidée de l'hôtel de ville — Journées nationales de l'Architecture 2026
Sun 18 Oct · 15:00
Hôtel de ville
Good to know : The National Architecture Days are an annual event where places and buildings open their doors to the public, with free tours and activities.
Guided tour of the town hall by the head of the municipal archives department, as part of the National Architecture Days.
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📮 Get Boulogne-Billancourt's family outings every Thursday