““ Roman engineering The Romans accomplished amazing feats of engineering as they built roads, bridges, and aqueducts (bridges for water conduits) across their empire. This 2,000-year-old Roman aqueduct at Segovia, in central Spain, has 128 arches. No mortar was used to cement the large blocks of granite together. Good roads were one of the reasons for the success of the Roman Empire. They allowed troops and supplies to be moved swiftly, before the enemy could either attack or escape.””
