The Walls of Benin

1. Which African city built more wall than the Great Wall of China?
2. Benin City, in today's Nigeria. Its walls and moats ran sixteen thousand kilometres, dug by hand, without a single machine.
3. In 1691 a Portuguese captain wrote: bigger than Lisbon, streets straight as far as the eye can see, no theft, no doors.
4. In 1897 the British burned it, and shipped thousands of its bronzes to London.
5. They're still there. What else did they skip in school?

02). Five sets: an aerial over the earthworks (red ramparts and dark moats winding through green), the diggers at a rampart, Benin City at dusk in 1691 with its straight avenue and palm-oil lamps, the same avenue burning in 1897 with soldiers carrying a crate, and a bronze head in a museum vitrine in London.