Aqueduct of Segovia
It is a symbol of the city. It must have been one of the most beautiful in the Roman world.
It was probably built during the Flavio period, between the late 1st and early 2nd centuries, when Vespasiano and Trajano were emperors, in order to bring water from the river Acebeda to the city. This magnificent work of engineering, that is still in excellent condition, begins near the Granja Palace with simple arches and carries the water to a tank known as "el Caserón". An ashlar canal then transports the water to a second tower and once it reaches Diaz Sanz square, row upon row of arches tower high above the ground. Its 20,400 stone blocks are neither cemented nor stuck together by any substance, and they remain as a solid perfect block up until this day. The maximum height of the structure is on the Azoguejo Square at 28.10 m and a total of 166 arches.
Source: Web server of Instituto de Turismo de España, TURESPAÑA.