This enormous censer uses a pulley system installed over 400 years ago.

Cliffside houses provide a spectacular view from their perch above the valley.

Geological storytelling.

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

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

The tallest tower in Cáceres's Old Town.

The largest medieval water tank on the Iberian Peninsula is preserved beneath the Cáceres Museum.

A neighborhood park in the city of Cáceres hides what some believe are revolutionary examples of Neanderthal cave art.

An old wool-washing house filled with Fluxus contemporary art.

A small town celebrates its cash crop with a giant highway sculpture.

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

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

An eerie collection of the surviving structures from a past celebration of the future.

The world's largest wooden structure.

A 16th-century Andalusian palace.

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

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

The discovery of these rare, ancient artifacts led to the creation of a new museum.

Single runway interrupted by a busy road that cuts across its middle.

Look closely and you'll spot the remains of an ancient Roman aqueduct beside this fountain.

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

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

A centuries-old house, once part of the wall of Granada, sports musket barrels from the battlements which allude to its original owner.

The world's first electric battery-powered submarine.