Guadiana River

The Puente Romano (Spanish for Roman Bridge) is a Roman bridge over the Guadiana River at Mérida, Spain. It is the world's longest (in terms of distance) surviving bridge from ancient times, having once featured an estimated overall length of 755 m with 62 spans. Today, there are 60 spans (three of which are buried on the southern bank) on a length of 721 m between the abutments.

The Alcazaba is a ninth-century Muslim fortification in Mérida, Spain. Like other historical edifices in the city, it is part of the UNESCO Heritage List.Located near the Roman bridge over the Guadiana river, the Puente Romano, it was built by emir Abd ar-Rahman II of Córdoba in 835 to command the city, which had rebelled in 805.

The Metropolitan co-cathedral of Saint Mary Major of Mérida (Spanish: Concatedral metropolitana de San Maria la Mayor) is a Roman Catholic cathedral church in Mérida, Extremadura, western Spain. Since 1994, together with the Metropolitan Cathedral of Saint John the Baptist of Badajoz, it is the seat of the Archdiocese of Mérida-Badajoz.