Sungbo’s Eredo is one of the largest man-made monuments in Africa, consisting of a giant system of ditches and embankments that surrounds the entire ljebu Kingdom in the rain forests of south-western Nigeria.
Coria, also called Corioritum and Corbridge, are the remains of a Roman town and fort, located south of Hadrian's Wall at the intersection of Dere Street and the Stanegate, in present-day England.
Across the length of the wall corridor, and at military installations, 59 known etchings of male genitalia, otherwise known as a fascinus or fascinum were carved at various locations to symbolise the male phallus.
The Antonine Wall (Vallum Antonini) was a defensive wall built by the Romans in present-day Scotland, that ran for 39 miles between the Firth of Forth, and the Firth of Clyde (west of Edinburgh along the central belt).
Hadrian’s Wall (Vallum Aulium) was a defensive fortification in Roman Britain, running for 73 miles (116km) from Mais at the Solway Firth on the Irish Sea, to the banks of the River Tyne at Segedunum at Wallsend in the North Sea.