Segovia and the Roman Aqueduct

I took a fast train (30 mins) from Madrid to Segovia. The first objective was to see the Roman Aqueduct. Segovia was a Roman military base. Empezror Trajan’s engineers built a nine-mile aqueduct to channel water from the Rio Frio to the city, culminating at the Roman Castle (which is the Alcazar to-day). The famous and exposed section of the 2000 year old Aqueduct Romano is 2500 feet long and 100 feet high. It has 118 arches, was made from 20,000 granite blocks without any mortar, and can still carry a stream of water. It functioned until the late 19th century.