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

Ancient catacombs form the foundation for this Rococo orgy of a church.

The stunning interior of this Gothic church is covered in ornate gold details.

New Orleans' famous cemetery, located on the site of a former race track.

Amsterdam's former hotspot for public executions and dissections.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Europe's official "zero-level," the equator of elevation.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The gardens and chambers of this Moorish citadel conjure memories of the Alhambra.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

Tintin's creator is celebrated in an immersive museum that's an astounding work of modern art.

The grave of the famous painter is marked by a simple stone in the ground.

Catacombs turned marketplace.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This sculpture encompasses the emotion of rail travel.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

An oddity of a bygone era that stills functions today.

The Tudor-style cottage in the middle of the square is not quite what it seems.

Named for a doctor who made a breakthrough in London’s cholera epidemic, this 1800s pub was also the site of a queer “kiss-in.”

London's smallest police station is barely the size of a phone booth.

An archway adorned with vulnerable flora and fauna.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

Dictionary Johnson’s favorite feline.

The taxidermied remains of a once-great parrot.