🇳🇬 Nigeria · Ancient city
Old Oyo (Oyo-Ile)
Yoruba Oyo Empire (14th–1835 CE; capital 16th–1835) · Yoruba (Oyo)
Old Oyo (Oyo-Ile, Katunga) is the 16th–19th c. capital of Oyo Empire, 10 km triple earthen walls enclosing 6,000 ha savanna plain with 17 palace compounds (Kobi), council houses and reservoirs.