joserpizarro / Shutterstock
Europe / Spain / Extremadura / Merida, Spain / Best Attractions

Alcazaba

Standing guard on the north bank of the Guadiana, the mighty Alcazaba fortress was built in the 9th century by the Umayyad ruler Abd ar-Rahman II to restore order after a rebellion, using recycled masonry from the Roman and Visigoth eras. It was perhaps the first alcazaba on the Iberian peninsula. There’s not a great deal to see inside its expansive ashlar walls, but its horseshoe arch bent entrance—a classic feature of Islamic military architecture—gives you a sense of how the fortress was used to control access, and the Moorish cistern (aljibe), incorporating floral Visigoth pillars, is a peaceful spot. Look out for live goldfish in its still waters. The fortress ramparts are an ideal vantage point for photographs of the Roman bridge just downriver.