All the Roman Roads of Italy, Visualized as a Modern Subway Map

"At its peak around the year 117 AD, the mighty Roman Empire owned five million square kilometers of land. It ruled more than 55 million people, between a sixth and a quarter of the population of the entire world. The empire, as classicist and historian Christopher Kelly describes it, 'stretched from Hadrian's Wall in drizzle-soaked northern England to the sun-baked banks of the Euphrates in Syria; from the great Rhine-Danube river system, which snaked across the fertile, flat lands of Europe from the Low Countries to the Black Sea, to the rich plains of the North African coast and the luxuriant gash of the Nile Valley in Egypt.' All that power, of course, originally emanated from Italy. The builders of the Roman Empire couldn't have pulled it off without serious infrastructural acumen, including the skill to make concrete that lasts longer than even the modern variety as well as the forcefulness and sheer manpower to lay more than 400,000 kilometers of road. ..."
Open Culture