This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Across Valencia lie the remains of three ancient fortifications built centuries apart: a Roman enclosure, an Islamic expansion, and a medieval Christian wall.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

The oldest preserved Triumphal Arch in Northern Italy

2300-year-old Roman road connecting the empire.

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

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

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

A Spanish town built into the cliffs.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

Small-town scandal, transformed into timeless pop art

Ciudad Real's former town hall found new life in 2005 when the chime clock with automatons was installed.

A masterpiece of Gothic-Mudejar design in Ciudad Real.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

Touching this little fossil embedded in the wall of a grand mosque-cathedral may make your wishes come true.

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.

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

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

This castle has links to Portugal’s founding and struggles for independence.

A small but charming botanical garden that contains many exotic plant species.

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

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

The original version of Porto's most famous sandwich is just as good here as it was a century ago.