Square Jean-XXIII

Laid out in 1844 behind Notre-Dame, on the site of the archbishop's palace demolished after the 1831 riot, square Jean-XXIII gives the fullest view of the cathedral's apse and the forest of flying buttresses supporting it.

At its centre, the neo-Gothic Fontaine de la Vierge was erected in 1845. Lime-shaded walks, benches and a lawn make it a natural place to pause after visiting. Tip: this is where the building's structure, invisible from the west front, is easiest to understand; late afternoon light falls directly on the apse.

Frequently asked questions about Square Jean-XXIII

Where is Square Jean-XXIII located?

Square Jean-XXIII is located in the 4th arrondissement of Paris, in the Île de la Cité area. It is easy to reach on foot from the main landmarks nearby and fits naturally into a Paris walking tour.

Is Square Jean-XXIII free to visit?

Yes, Square Jean-XXIII is free to visit — no ticket required.

How long does a visit to Square Jean-XXIII take?

Plan around 25 minutes to enjoy Square Jean-XXIII at a relaxed pace — a little more in high season or if you want to take photos.

What are the opening hours of Square Jean-XXIII?

Tous les jours · 8h – coucher du soleil (horaires saisonniers). These hours are indicative — check public holidays and exceptional closures before you go.

Is Square Jean-XXIII suitable for children?

Yes, Square Jean-XXIII (Parc & Jardin) works well for families: the visit is short and combines easily with other stops around Île de la Cité.