Cağaloğlu Cistern 

Cağaloğlu Cistern consists of the remains of a massive wall located a short distance north of the Mese. Part of its east wall can still be seen from the west side of Bab-ı Ali Street near Cağaloğlu Anatolian High School. It dates to the Early Byzantine era, perhaps to the 5th century, and consists of alternate bands of rough mortared rubble and of brickwork with a length of 90 meters. Originally it was suggested it might be the remains of Severan Walls of Byzantium. Excavations in 1968 revealed that the wall went 14 meters deep without reaching the bottom, leading to its identification with the eastern wall of a huge open cistern. The identity of this cistern is unknown, but it might be the Theodosius Cistern, Philoxenos Cistern or the Cisterna Maksima, which are known to have been in the general vicinity.

Hypothetical plan by Bardill

Sources

İstanbul'da Bizans Dönemi Sarnıçlarının Mimari Özellikleri ve Kentin Tarihsel Topografyasındaki Dağılımı by Kerim Altuğ

The Great Palace of the Byzantine Emperors by D. T. Rice

“The Water Supply of Constantinople” by Cyril Mango

“The Palace of Lausus and Nearby Monuments in Constantinople: A Topographical Study” by Jonathan Bardill

Resources

Byzantine Cisterns of Constantinople Photo Album (Byzantine Legacy Flickr)

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The Byzantine Legacy
Created by David Hendrix Copyright 2016