There were two public fountains to distribute free water to people in Hagia Sophia. One of them is located at the right of the Vestibule Door exit to the courtyard. The other one, built by Sultan Ibrahim, is on the southeast corner of the courtyard. It dates back to the 17th century.
About the author
Hagia Sophia Research Team (HSRT) consists of a group of people who likes to research Byzantine Heritage in Turkey by visiting and taking photos of the historical places.