The corpse bride of Portugal.

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

Seaside ruins of a settlement that date back to the first century B.C.

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

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

A medieval village holds a very modern hotel.

Giant topiary dog once played a role in a terrorist bomb plot.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Art deco landmark on the outskirts of Washington, D.C.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This former luxury resort in Kaua'i is now an abandoned relic.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

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

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

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

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

World's largest Christmas store.

A site where “the ravages of the war are more striking…than any other place in contemporary Spain.”

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The fossilized remains of ancient California redwoods.

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

Old Danish castle immortalized in Shakespeare's Hamlet.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.