One of the biggest monuments in this monumental town, it was built in the 9th century AD by the musulmans who controled the region at that time. It is said to be the first Alcazaba in Spain.  It is big, rather well preserved and really well kept. Still to some people it might just look like big open space surrounded by big and old walls with some scattered walls inside. But I believe that a stroll over the wall overlooking the  Rio Guadiana and the  puente Romano at the end of the day when the sun starts to set makes for a perfect ending of a day of archaeological visits and delights.