ruins of a basilica at madinat al-zahra near spanish town cordob

church ruins column gate arcade basilica madinat alzahra zahra carving archaeology detail archway sculpture umayyad alandalus alrahman alndalus spanish city building ruin art andalucia stone arch spain islamic arab cordoba culture andalusia archaeological medina caliphate ancient heritage caliph archeology old historic palace architecture landmark moorish unesco arabic islam muslim