Roads of the Roman Empire, 125 AD
The road network of the Roman Empire under Hadrian, linking Britain to Mesopotamia along roughly 80,000 kilometers of paved highway.
Rome's roads were built first for legions and the cursus publicus, the imperial courier and supply service, and only secondarily for trade — yet they knit together an empire spanning three continents. Engineers laid foundations of packed stone and gravel beneath a cambered paved surface designed to shed water, a technique so durable that stretches of Roman road are still walked and driven on today, and many modern European highways still trace their routes. Milestones marked distances from the Golden Milestone in the Forum, giving rise to the saying that all roads led to Rome. Read more in engineering the empire: Roman roads under Augustus.
CC BY-SA 4.0 — source (Wikimedia Commons). Free to reuse under the stated licence.
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