Underground & cool · Architecture & urbanism centre · €
Pavillon de l'Arsenal
Paris's free centre for architecture and urbanism, in an 1879 iron-and-glass hall by the Seine. A large permanent scale model of the city covers the ground floor; the temporary shows upstairs argue over how the place should be built next.
Long-running
Walk the lit floor model first to orient yourself, then take the upstairs show; closed Mondays.
Address21 boulevard Morland, 75004 Paris
Arrondissement4e
Price€ · Free admission
HoursTue–Sat 10:30–18:30, Sun 11:00–19:00; closed Mon
Verified openJune 2026
How we verified this
Confirmed currently operating as of June 2026, cross-checked against 1 source:
More underground & cool
par.is is a living map of Paris. Every place here is a real, currently operating destination — re-checked over time and removed the moment we can no longer confirm it's open. No paid placements, no scraped directory: just opinionated picks worth your trip.