Istanbul has a new attraction: a 1600-year-old underground reservoir was opened for tourists

The Feodosius tank, part of the Byzantine water supply system, which was still working as Istanbul by Constantinople, is open to visiting Chamberlithic microdistrict in the historical part of the city.

The water reservoir built during the reign of the Byzantine emperor Theodosius II (428–443), which is nearly 1,600 years old, is an important element of complex infrastructure built by the Byzantines, and then preserved and modernized during the Ottoman Empire. The tank was discovered in 2010 under the beginning of the 20th century and the municipal building of the 1950s, after the demolition of which a restoration project was launched, lasting eight years.

The Feodosia tank has an area of ​​1,125 square meters and a ceiling with a height of nine meters, which is supported by 32 marble columns. It is smaller, but about 100 years older than the nearby tanks of the Basilica (Yerebatan Sarnıcı), one of the most popular tourist facilities in Istanbul. The third underground reservoir in this area, the Fillocsen tank (Binbirdirek sarnıcı) was built even earlier - in the 4th century. All of them are part of the 250-kilometer water supply system, which supplied water from the Belgrade forest (not located in Belgrade, but is named after the Serbs deported to this area of ​​the Ottoman Empire in 1521) through the Valentine Aqueduct directly decorated drinking fountains, which can still be seen all over Istanbul.

The Feodosia tank is located at Piyer Loti Caddesi 23 in the Fatih area. It is open from 10:00 to 19:00, periodically exhibitions and other events take place in it. The entrance is free, the descent is equipped with an elevator.