The Estremoz Castle was built in a dominant position on a hill to the north of the Serra de Ossa, in the city of Estremoz, in the district of Évora, in Alentejo, Portugal.
It is a pentagonal castle with a walled enclosure, reinforced by buttresses that rise around the Torre de Menagem, a spectacular tower built in white marble, 27 metres high. It is believed that the construction of this monumental tower lasted through three reigns: D. Afonso IV, D. Pedro and D. Fernando, and, for this reason, it is known as the Torre das Três Coroas.
Beyond the medieval wall, the town of Estremoz has a vast expanse of fortifications from the epic Restoration War, where the towers with battlements and two arched gates stand out, next to which there is a rectangular tower in the Roman-Gothic style, with several windows.