Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

King Carlos IV laid the first stone during construction of this chapel.

Replicas of fossils unearthed during renovation work reveal how this area would have looked millions of years ago.

Strange masks and obscure costumes are housed in this old Madrid corrala.

The extensive relics of an ancient Roman and Phoenician fish processing plant hide in a town park.

Medieval village and microminiature museum.

A 12th century church completely covered in shells.

A house covered entirely with shells.

Despite its grandiose name, this enigmatic first-century void under the town is no cave, and it's possibly not a palace either.

These magnificently sculpted tombs represent Spain's own legendary version of "Romeo and Juliet."

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

This underwater graveyard commemorates a group of murdered 16th-century missionaries.

The effect of this ancient form of image projection situated atop an 11th century Moorish palace is thrilling.

This 7,000-year-old megalithic wonder covered by a Franco-era reservoir emerges in times of drought.

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

This postmodern apartment block was designed to be a vertical neighborhood.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

Just like in Hollywood, Madrid has also a forgotten walk of fame.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

The oldest Roman lighthouse still in use.

An exact replica of a colossal Olmec head sits atop a pyramid within a Madrid traffic circle.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.