This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

This colorful statue welcomes visitors to a Barcelona park.

The ruins of an ancient stadium that hosted gripping chariot and horse races.

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

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

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

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

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

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

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

A 16th-century Andalusian palace.

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

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

The best place in the world to buy tinned fish.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world's oldest bookshop still in operation.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This column celebrates Rome's victory over the Goths, and may be the oldest Roman monument in Istanbul.

A sixth-century Byzantine cistern hidden below a modern carpet store.

The ancient latrines of the Greeks, in all their public glory.