This statue was given to France by the United States to commemorate the centennial of the French Revolution.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

France's most famous cemetery, with some of its most curious tombs.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

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.

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

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

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

An ancient Egyptian temple in the middle of Madrid, Spain.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

The "Little Ones," show Portugal in full miniature splendor.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

A cluster of granite granaries perched on stilts.

Elaborate tile work in this railway station tells the story of Portugal.

One of the largest Roman settlements in Portugal.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

A unique seaside cave where Aleister Crowley faked his own death.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

This indoor ski resort has a mountain contained inside a mall.

Nature’s skyscraper launches out of the terrain with attitude.