The walk to Sungbo Eredo © Jeremy Weate
Take a taxi one hour north of Lagos to see Sungbo's Eredo, Africa's largest pre-colonial construction, a sight rated by experts as an unknown 'Wonder of the World'. The Eredo is a rampart that is 1,050 years old, 100 miles (160km) long, and 70ft (20m) high. Locals will need to guide you in and out, as the structure is rapidly being covered by encroaching forest.
The enigmatic Eredo has been linked to the myths and legends of various tribes and religions. According to the local Ijebu clan, the Eredo may have been built as a memorial to noblewoman Oloye Bilikisu Sungbo, a childless widow, whose grave is located nearby.