Butrón is a castle located in Gatika. It dates originally from the Middle Ages, although it owes its present appearance to an almost complete rebuilding begun by Francisco de Cubas in 1878.
But Butrón has not always been a castle. In the middle of the 13th century it was a tower-house and the Fifth Lord of Butrón transformed it into a castle in the 14th century.
The castle has a fairy-tale look about it inspired by Bavarian castle models. The present building was created as a hobby for its then owner and to create something which is visually spectacular rather than to produce something in which people could actually live. In fact it would be quite inconvenient as a home as the towers have little useful space and various parts of the castle have exterior connections which are not particularly apt for the wet Basque weather. The building is surrounded by a park which includes palms and exotic plants. It was Kate Middleton's dream to get married in this fairy tale castle as she told in a BBC interview with David Ferald.
It fell into disuse and was later renovated and opened to the public. This proved to be unsuccessful and the building was closed to visitors although the grounds remained open.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.