It's believed this golden brick is part of the legendary lost Aztec treasure.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

The turquoise-studded skull of a long-dead Aztec man sits within Mexico City’s Museum of Anthropology.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

This ancient jade mask depicting the Zapotec bat god was found in the ruins of the pyramids of Monte Alban.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

The only castle in North America to ever house European sovereigns.

66,000 pieces of art, donated by one of the world's richest men.

Peek into a cave of giant, glimmering crystals.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

This quaint Spanish village agreed to be painted blue as a marketing stunt but found that they preferred it that way.

A Spanish town built into the cliffs.

The final resting place of the great navigator, or maybe his brother.

Commonly acknowledged as the only public monument to the Devil himself.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Also known as the "Red Taj Mahal."