Merida, Badajoz Province, Extremadura, Spain. An underground cistern in the Alcazaba, a 9th-century Muslim fortification.

- Image ID: HNPADK
Merida, Badajoz Province, Extremadura, Spain. An underground cistern in the Alcazaba, a 9th-century Muslim fortification.
Hilary Morgan / Alamy Stock Photo
Image ID: HNPADK
Location: Mérida, Badajoz, Spain