Divided: Why We're Living in an Age of Walls

by Tim Marshall

The age of walls was upon us and these great fortifications have gripped our imagination ever since. We still tell each other tales of the walls of Troy, Jericho, Babylon, the Great Wall of China, Great Zimbabwe, Hadrian’s Wall, the Inca Walls in Peru, Constantinople and many others. On and on they stretch, through time, region and culture, to the present – but now they are electrified, topped with searchlights and CCTV.