The Basilica Cistern (Turkish: "Yerebatan Sarnc "Cistern Sinking Into Ground"" ), is the largest of several hundred ancient cisterns that lie beneath the city of Istanbul (formerly Constantinople), Turkey. The cistern, located 500 ft southwest of the Hagia Sophia on the historical peninsula of Sarayburnu, was built in the 6th century during the reign of Byzantine Emperor Justinian I.
Can we infer the following?
The Basilica Cistern is the most recognizable cistern to the Turkish people.
It's impossible to say