A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

The first green space constructed on an elevated viaduct.

France's national museum of scientific and industrial instruments.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

After immigrating to Paris in the 1970s, two brothers from Laos built a grocery store empire.

A short distance from the Eiffel Tower is the final resting place of several of the city’s more well-known and interesting characters.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

How did a French journalist’s grave become the sexiest statue in the cemetery?

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

This massive library holds what was once the largest book collection in the world.

This semi-secret storybook hedge maze is also the oldest garden in the city.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A once-secret library of Freemason history in Catalonia.

This cemetery features modernist statues as strange as its name.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.