This castle is located on the southwest spurs of the Sierra de Irta.

It is originally of Moorish construction, built in the late 11th and early 12th centuries, but following the Reconquest it was remodelled by the Order of the Temple, and then underwent successive modifications that can still be seen today, for example the separation of the castle and the town by means of a wall, and the imposing ashlar walls and the circular twin towers.

The total space occupied by the castle is around 8000 square metres, divided into three main areas: the "Alcazaba" or castle fortress, located on the uppermost part of the complex, where the political and military forces were located; the "Albacar", a walled area where the townsfolk and livestock were concentrated in times on conflict; and the "Alijama" or settlement located on the southeast side of the mountain, which was also walled.

In the castle itself there are a series of major constructions: the homage tower, the Gothic chapel, the twin towers, the inland tower, the Gothic cistern and a Kuphic inscription on the south-southeast side of the external wall. A tour round the entire structure provides a good view of what life must have been like in ancient times.

Also of note is the hydraulic system used for the Moorish houses, the half-buried cistern, located next to the outer wall. The cistern of the Templar castle is another significant construction, located next to the fortress and made in ashlar work with a lowered ceiling.

According to legend, it was here that the Moors signed their surrender to the Christian hosts in 1234, and finally in 1609 that the converted "Moriscos" were ordered to leave the country for good.