Valens Aqueduct was built in years between 368 and 373 in Eastern Roman Emperor Valens (364 – 378) period. It was built on the lower area between the third and fourth hill over the water way. The water was brought from the dams outside the walls by pipes and channels. It was 971 meter long with the parts demolished by the Conqueror and the prince. It continued functioning after being repaired in Ottoman era.
At the period of Eastern Roman Emperor Valens (364 – 378), it was built between 368 and 373. It was built on the lower section of the water road that is brought to the city from channels outside the city wall. With the collapsed sections on the side of Fatih and Şehzadebaşı, it had length of 971 meters. Atatürk Street connecting to Aksaray passes below the aquaduct. Since the valley deepens at this section, it rises as vaults of two lines and reaches 28 meters. Aqueduct that continued to function during Ottoman period after a repair is a historical heritage that met the water needs of the city during Late Roman, Byzantine and Ottoman periods. You may walk from here to Unkapanı and see Zeyrek Mosque, formerly Pantocrator Church at the left hill.
Note: You can also visit Zeyrek Mosque which was an old church by walking from Atatürk Boulevard where there is an aqueduct to Unkapanı.