
The Aljafería Palace is a fortified medieval palace built during the second half of the 11th century in the Taifa of Zaragoza in Al-Andalus, present day Zaragoza, Aragon, Spain. It was the residence of the Banu Hud dynasty during the era of Abu Jaffar Al-Muqtadir. The palace reflects the splendour attained by the Taifa of Zaragoza at the height of its grandeur. It currently contains the Cortes of the autonomous community of Aragon.

The castle of Alcocer was a fortified Muslim village located in the archaeological site of La Mora Encantada in the Aragonese municipality of Ateca, Zaragoza, Spain.

The Castle of Loarre is a Romanesque Castle and Abbey located near the town of the same name, Huesca Province in the Aragon autonomous region of Spain. It is one of the oldest castles in Spain.
The Castle of Ojos Negros

The Castle of Montearagón was a fortress-monastery in Quicena, near Huesca, Aragon, Spain, built in the Romanesque style. It is now in ruins.

Monzón Castle is a fortress located in Monzón, Spain.

The Castle of Peracense is a castle in Peracense, Aragon, northern Spain.
Sádaba Castle is a castle in Sádaba, Aragon, eastern Spain, located some 90 kilometres (56 mi) north of Zaragoza.

Torrecid was a Christian mota located in the municipal district of the Aragonese town of Ateca, Zaragoza, Spain, El Cid camp in the Jalón river valley. It has remained buried for almost a thousand years until recent archaeological excavations have found it where described by the author of Cantar de Mio Cid. To date the Government of Aragon has not cataloged it so its protection is the generic indicated in the Decree of April 22, 1949 and Law 16/1985 of protection of the Spanish Historical Heritage.