Alcalá Castle, locally known as Castillo de Alcalá or Castillo de La Puebla, lies on a mountain south of the village of Puebla de Mula, in the province of Murcia in Spain.
Not much is known about the history of Alcalá Castle. It probably dates back to the 8th century, when it was built by Muslim forces. A Muslim garrison was stationed in the castle to control the former enclave of Mula. Its strategic location and imposing defensive structures allowed it to maintain an important role during the process of incorporation of the Kingdom of Murcia into the Crown of Castile, in the 14th century. After 1304 it was mentioned twice as having a garrison stationed within its walls and in the late 14th century some governors were appointed to the castle.
Alcalá Castle was built on top of a flat-top limestone mountain of some 120 meters high. Its remains on top of the mountain, consist of a large rectangular tower, which also holds the entrance. The entrance is angled and seems to have been recently rebuilt with bricks. Furthermore there are some stretches of defensive wall, a deep well and remains of twelve large cisterns. Most of the remains are built out of rammed earth and rubble masonry.
This is a very nice castle, mostly because of its splendid location.