Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

A Gothic cathedral created from volcanic rocks.

Historic medieval fortified city in southwest France.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

The lost Latin words were reconstructed using the holes from the nails that once pinned them in place.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

This colorful statue welcomes visitors to a Barcelona park.

An early 20th-century bullring converted into a modern shopping center.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

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

Mountain where Jesus was first tempted by the Devil.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Napoleon's childhood home is now open for people to explore the beginnings of France's short general.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A historic Montreal market that was the city's agricultural hub for over century.

Every year, the colorful murals of Montreal get a complete makeover.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Louise Bourgeois' 30-foot-tall steel spider sculpture.