2 Best Sights in The Islands, Paris

Looming above Place du Parvis, this Gothic sanctuary is the symbolic heart of Paris and, for many, of France itself. After a five-year rebuild following the 2019 fire that nearly destroyed it, the cathedral reopened to rapturous reviews in December 2024. Newly luminous and awash in color, the monument enthralls more than ever. And its history remains unchanged: Napoléon was crowned here, and kings and queens exchanged marriage vows before its altar.

Begun in 1163, completed in 1345, badly damaged during the Revolution, and restored in the 19th century by Eugène Viollet-le-Duc, Notre-Dame may not be the country’s oldest or largest cathedral, but in beauty and architectural harmony it has few peers. The front facade has three main entrances: the Portal of the Virgin (left); the Portal of the Last Judgment (center); and the Portal of St. Anne (right). As you enter the nave, the faith of the early builders permeates the interior: the glow of the windows contrasts with the exterior’s triumphant glory. Look down the nave to the transepts—the arms of the church—where, at the south entrance to the choir, you'll glimpse the haunting 12th-century statue of Notre-Dame de Paris, Our Lady of Paris, for whom the cathedral is named. On the choir’s south side is the Treasury, with its small collection of religious artifacts. On the north side is the north rose window, one of the cathedral's original stained-glass panels; at the center is an image of Mary holding a young Jesus.

The best time to visit is early morning, when the cathedral is brightest and least crowded. Guides are available at the entrance (€10); guided tours in English are also available (check the website for specific times). A separate entrance, to the left of the front facade, provides access to the towers via 422 stone steps. These wind up to the bell tolled by the fictional Quasimodo in Victor Hugo's 1831 Notre-Dame de Paris. The famed gargoyles (technically chimeras since they lack functioning waterspouts) were 19th-century additions.

It is obligatory to reserve a tower visit online; lines to climb the tower are shortest on weekday mornings. Down the stairs in front of the cathedral is the Crypte Archéologique, an archaeological museum offering a fascinating subterranean view of this area from the 1st century, when Paris was a Roman city called Lutetia, through medieval times. By day, the most tranquil place to appreciate the cathedral's architectural elements is Square Jean-XXIII, the lovely garden behind the cathedral. By night, Seine boat rides promise stellar views.

Built by the obsessively pious Louis IX (1214–70), this Gothic jewel is home to the oldest stained-glass windows in Paris. The chapel was constructed over seven years, at phenomenal expense, to house the king's collection of relics acquired from the impoverished emperor of Constantinople. These included Christ's crown of thorns, fragments of the Cross, and drops of Christ's blood—though even in Louis's time these were considered of questionable authenticity.

The narrow spiral staircase by the entrance takes you to the upper chapel where the famed beauty of Sainte-Chapelle comes alive: 6,458 square feet of stained glass are delicately supported by painted stonework that seems to disappear in the colorful light streaming through the windows. Deep reds and blues dominate the background, noticeably different from later, lighter medieval styles such as those of Notre-Dame's rose windows.

The chapel is essentially an enormous magic lantern illuminating 1,130 biblical figures. Besides the dazzling glass, observe the detailed carvings on the columns and the statues of the apostles. The lower chapel is gloomy and plain, but take note of the low, vaulted ceiling decorated with fleurs-de-lis and cleverly arranged Ls for "Louis." Audio guides (€3) are available, or you can download a phone app focusing on the church's stained glass windows.

Sunset is the optimal time to see the rose window; however, to avoid waiting in killer lines, plan your visit for a weekday morning, the earlier the better. Come on a sunny day to appreciate the full effect of the light filtering through all that glorious stained glass. You can buy a joint ticket with the Conciergerie: lines are shorter if you purchase it there or online. The chapel makes a divine setting for classical concerts; check the schedule at  www.classictic.com.