The world's largest collection of Don Quixote-inspired art.

A hotel masquerading as a medieval castle overlooks a Mexican city.

Colonial architecture meets urban art in this sprawling open-air gallery.

This art shopping center still boasts pieces of its past as a textile factory.

A beautiful example of 18th-century engineering still standing tall.

The building that houses this museum is as historic as its collection.

Extraordinary sculpture garden created by an eccentric English poet.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Its sunny hues are believed to have inspired the town's color palette.

These winged Maya figures are the subject of speculation and conspiracies.

This small museum explores Mexican history and culture through clothing.

The former home of a conniving 17th century politician is now a high-end hotel.

The oldest operating roller coaster of its kind, the Montaña Suiza has been thrilling riders since 1928.

This enigmatic artifact is a rare depiction of an ancient Iberian noblewoman.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

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

This 19th-century fountain's namesake animal isn't what you think it is.

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

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.