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

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

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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

Hamburgers are intensely proud of their tunnel beneath the river.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Pompeii's less famous neighbor is still revealing her secrets.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

It houses the remains of a 17th-century version of the Titanic.

An abstract monument to a symphonic composer.

Famously misunderstood wonder of the ancient world

On the waterfront of Sydney, Nova Scotia, a 60-ft. fiddle greets incoming ships.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.

The first declared National Monument in the United States.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.