A castle shaped like the prow of a ship, a royal palace straight out of a fairy tale, a vast Caliphal fortress and a tower perched on a rocky outcrop that appeared in a globally successful television series.
Spain is home to countless fortresses, but some stand out for their distinctive silhouettes, rich history and the extraordinary locations in which they were built. Choosing just eight is no easy task, but the result is a varied route that spans different architectural styles, landscapes and eras.
These castles provide valuable insight into how territories were defended, what life was like within royal courts and why certain locations became symbols of power. Visiting them is about more than admiring ancient stone walls. It is also an opportunity to look out across valleys and cliffs, recognise silhouettes made famous by films and television, and discover places where the legacy of historic frontiers can still be felt.
- Alcázar of Segovia: the stone "ship" overlooking the valley
- Royal Palace of Olite (Navarra): a real-life fairy-tale castle
- Loarre Castle (Huesca): a Romanesque masterpiece in the mountains
- Peñíscola Castle (Castellón): a fortress overlooking the Mediterranean
- Gormaz Castle (Soria): the great Caliphate fortress of the Duero
- Ponferrada's Templar Castle (León): stone, pilgrimage and El Bierzo
- Belmonte Castle (Cuenca): a star-shaped fortress
- Zafra Castle (Guadalajara): the impossible fortress on the rocks
- How to plan the route: timing, photography and respecting the surroundings
Alcázar of Segovia: the stone "ship" overlooking the valley
The Alcázar of Segovia is instantly recognisable thanks to its striking silhouette, which resembles the prow of a ship projecting over the meeting point of two valleys. Its elevated position and cluster of towers explain why it served both as a royal palace and a defensive fortress, reflecting the power wielded by the Crown of Castile for centuries. The exterior is every bit as impressive as the interior, where richly decorated rooms coexist with military architecture.
The surrounding viewpoints offer a clear sense of the fortress's strategic importance and commanding presence. A visit combines history, spectacular photography opportunities and a walk through one of Spain's most beautiful historic cities.
Royal Palace of Olite (Navarra): a real-life fairy-tale castle
The Royal Palace of Olite is what many people imagine when they think of a fairy-tale castle, with its distinctive towers, passageways, courtyards and decorative details. Here, visitors can see how a fortress evolved into a royal residence where comfort and courtly life became as important as defence.
The palace can be explored across several levels, revealing spaces that evoke the former splendour of the Navarrese court. Its imaginative design gives it one of the most distinctive profiles on the Iberian Peninsula. The surrounding historic centre also encourages visitors to slow down and enjoy the experience at a relaxed pace.
Loarre Castle (Huesca): a Romanesque masterpiece in the mountains
Widely regarded as one of the best-preserved Romanesque fortified complexes in Europe, Loarre Castle immediately impresses upon arrival. Perched on a rocky outcrop, it overlooks the plains of the Hoya de Huesca and offers sweeping panoramic views. Its church, towers and curtain walls encapsulate a key period in the expansion of the Christian kingdoms, expressed through an architecture defined by solidity and simplicity.
Its exceptional preservation has made it a popular filming location. Given its spectacular natural surroundings, it is an ideal destination for anyone wishing to combine history and scenery in a single visit.
Peñíscola Castle (Castellón): a fortress overlooking the Mediterranean
Built by the Knights Templar and later home to Pope Luna, Peñíscola Castle rises above the Mediterranean on a rocky peninsula connected to the mainland by an isthmus. The combination of sea views, defensive walls and whitewashed streets explains its enduring popularity among travellers and photographers.
The castle interior preserves traces of both its military and religious past, while walks along the battlements offer far-reaching coastal views. The pedestrianised old town completes an experience that rewards a leisurely visit. It remains one of Spain's most photogenic coastal fortresses.
Gormaz Castle (Soria): the great Caliphate fortress of the Duero
Gormaz Castle is remarkable for its sheer scale. Stretching along a ridge above the Duero Valley, it is considered one of the largest Caliphal fortresses in Europe. Its strategic position helps explain its importance as a frontier stronghold for centuries. The gates, towers and surviving stretches of wall provide a vivid picture of medieval military architecture. Exploring the vast complex at a relaxed pace allows visitors to appreciate both the engineering achievement and the impressive views. It is one of the best places to understand the scale of Andalusi military architecture on Spain's central plateau.
Ponferrada's Templar Castle (León): stone, pilgrimage and El Bierzo
In Ponferrada stands one of the most impressive Templar fortresses on the Iberian Peninsula. Its extensive enclosure and multiple defensive lines reflect its strategic role in controlling important routes, including the Camino de Santiago through El Bierzo. The towers and walls create a powerful silhouette visible from nearby bridges and public squares. Inside, exhibitions and guided tours help explain the site's historical significance. Combined with the town's lively atmosphere and renowned gastronomy, the castle offers a particularly rewarding visit.
Belmonte Castle (Cuenca): a star-shaped fortress
Belmonte Castle is notable for its unusual star-shaped floor plan, featuring walls and barbicans that reveal a sophisticated approach to defence. Its excellent state of preservation allows visitors to explore rooms, courtyards and passageways with ease. The castle also hosts regular historical re-enactments and cultural events that bring its history to life.
Overlooking the plains of La Mancha, its imposing silhouette dominates the surrounding landscape. It is an accessible and highly rewarding option for visitors seeking a complete castle experience.
Zafra Castle (Guadalajara): the impossible fortress on the rocks
Zafra Castle comes as a surprise even to experienced travellers. Perched atop a dramatic rocky ridge in the Señorío de Molina, it appears almost impossible. Its spectacular setting earned it a role in a major international television series, further boosting its fame. Access is via rural roads and tracks, and the main attraction lies in admiring the castle from the outside, where the walls and rock formations blend into a single dramatic silhouette.
Visitors should plan ahead and respect the surrounding environment, as facilities are limited. Remote, rugged and unforgettable, it is perhaps Spain's most striking isolated fortress.
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How to plan the route: timing, photography and respecting the surroundings
A castle itinerary works best when it combines manageable driving distances with a variety of landscapes. The quality of light is also important, with early mornings and late afternoons often providing the best conditions for photography. Equally important is checking practical information before travelling, as each site has its own opening times and visitor regulations.
- Check opening hours and possible closures on official websites, particularly during public holidays and the low season.
- Book tickets in advance whenever possible to avoid queues and guarantee entry.
- Wear comfortable footwear and carry water, as many castles involve steep paths, stairs and exposed areas.
- Respect signage, restricted areas and private property, especially where only exterior access is permitted.
- Plan parking and access routes ahead of time to make travel between stops more efficient.
Article seen in Spanish on arquitecturaydiseno.es: From a castle that looks like a stone ship to a palace that seems straight out of a fairy tale: 8 fortresses in Spain worth visiting
