9. Nigeria Has The Longest Bridge in Africa.
The 11.8km (5-mile) long Third Mainland Bridge connects Lagos Island to the mainland. It starts at Oworonshoki on the Lagos mainland, and ends at Adeniji-Adele interchange on Lagos Island. There is also a link mid-way through the bridge that leads to Herbert Macaulay Way, Yaba. The bridge was built by Julius Berger PLC.