Three Paris churches, compared
Sainte-Chapelle vs Notre-Dame vs Saint-Eustache
A royal chapel, a cathedral and a parish church, all within a short walk of each other on and near the Île de la Cité — what actually separates them.
Check tour dates on Viator ↗Sainte-Chapelle: a small royal chapel built for one purpose
Consecrated in 1248 to hold the Crown of Thorns, it's a single vertical building whose upper level is almost entirely stained glass. Entry is ticketed.
Notre-Dame: the cathedral, reopened
Notre-Dame reopened in December 2024 after the 2019 fire and five years of restoration. It's a working cathedral on the same island, a short walk from Sainte-Chapelle, with free entry to the main floor — and the Crown of Thorns itself is now kept there rather than at Sainte-Chapelle.
Saint-Eustache: the parish church near Les Halles
A large working parish church mixing a Flamboyant Gothic structure with Renaissance and classical detail, best known for one of Paris's largest organs. It sits apart from the Île de la Cité, close to the former Les Halles market, and is free to enter like most Paris parish churches.
Which to prioritise
Sainte-Chapelle rewards visitors specifically interested in medieval stained glass and willing to pay for admission. Notre-Dame and Saint-Eustache are both working churches that can be visited without a ticket, each on its own architectural terms.