The Castle of Coca is a castle located in the Coca municipality, central Spain. The castle was constructed in the 15th century and has been considered to be one of the best examples of Spanish Mudejar brickwork which incorporates Moorish Muslim design and construction with Gothic architecture.

A scale model of the castle has been built in the Mudéjar theme park and another replica built at a ratio of 1:25 is placed in the Minimundus miniature park in Klagenfurt, Austria.

The castle was constructed under the supervision of a Moorish architect and engineer. Such Moorish engineers were routinely commissioned to construct large buildings during the medieval times and were called "Alarife" (one who understand the art of construction). Brick has been used for most of the construction. However, the bricks used in the castle are different from ordinary bricks used to build houses. These are hardened bricks that are capable of withstanding enemy onslaught during sieges. The bricks have been laid smooth with the mortar, so the lines of the brickwork are clearly visible along with the mortar. This creates a distinctive pattern on the castle. The castle has been constructed in classic Mudéjar fashion. Brickwork and plaster work have been used to create geometrical patterns depicting a hybrid of Moorish Muslim and Christian Gothic architecture.

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