Île-de-France, France

Famed for its stained glass, this beautiful 13th-century Gothic chapel was built by King Louis IX as a royal chapel to house important relics of Christ.

Completed in 1900 for the Paris Exposition, the Petit Palais is an opulent building in the Beaux-Arts style. Since 1902 it has been the home of the City of Paris Museum of Fine Arts.

Designed by I. M. Pei, this striking glass pyramid provides a visual focal point for the Louvre Museum courtyard as well as a modern underground entrance.

The most fashionable church in 19th-century Paris, this basilica dedicated to a saintly French queen is best known for its imposing twin spires.

The most famous cemetery in France, this is the final resting place of Abelard and Héloïse, Chopin, Moliére, Oscar Wilde, Delacroix, Balzac, Jim Morrison and more.

Housed in a spectacular modern building, the Paris Institut du Monde Arabe explores France's long relationship with the Arab world and provides insights into Arab-Islamic religion, philosophy and politics.

When the Louvre was still a royal palace, this was its church. It accordingly drew an assortment of royalty, courtesans, men of art and law, and local artisans.

Built to house a relic of the True Cross brought from Spain in 542, this church was so powerful in the Middle Ages that it became a town within a town. It is one of very few Romanesque churches in Paris.