Alcazaba
Next to the Roman bridge of the Guadiana River. Built by Abderraman II in 835 d. C. as a stronghold to control the city, which since 805 had rebelled continuously against the rule of the Emirate. First Arab citadel of the Iberian Peninsula.
It is a complex construct, consisting of a large area of 130 square meters on a side capable of accommodating a large number of troops. Inside are a wonderful aljibe, where building is unique, consisting of an inexhaustible water tank (filtered from the Guadiana) that was accessed with a double row from the ground floor of a tower. At one end was built a convent for the Order of Santiago and is now the seat of the presidency of the Junta de Extremadura. Next to the Roman bridge is attached another smaller room, called Alcazarejo, which controlled the river crossing the city.
Read more about this topic: Emerita Augusta