Head to the mountains to catch a glimpse of Spain's endangered subspecies of brown bear.

See replicas of Europe's most famous cave paintings and even some of the animals that feature in the art.

A prehistoric cave in Spain contains paintings dating back to the Ice Age.

Devastated landscape used for hundreds of years by the Romans as their primary mining site.

This enchanting natural park is a magical example of a temperate rainforest in Europe.

The mysterious remains of a martyred teenage saint are venerated inside a small country chapel.

This magnificent brick dome was made with an unusual design method.

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

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

Giant granite sculptures representing family on the northern coast of Spain.

Open air sculptures by an eccentric and loin-clothed hermit.

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

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

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A hidden three-foot-wide house separates these two regal churches.

One of the smallest bookstores on the planet.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

Iron Age runes and ruins hide in plain sight along this Portuguese beach.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

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

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

The world's oldest bookshop still in operation.