This ancient city brings to life one of the most astounding engineering feats built by the Romans. The Roman aqueduct runs for about 15 km and was constructed two thousand years ago to bring water to the Roman fortress found at the opposite end of the old city, which later added on and named The Alcazar by the Moors. A person feels insignificant standing next to this magnificent feat of engineering. It is considered one of the wonders of the world, and recognized by every traveler. Segovia is located a short distance from bustling Madrid, and a worth while side trip from Madrid for anyone visiting Spain.