Cistern of Aspar
From Wikipedia, the free encyclopedia
The Cistern of Aspar (Greek: ἡ τοῦ Ἄσπαρος κινστέρνη) or Great Cistern (Greek: μεγίστη κινστέρνη), known in Turkish as Sultan Selim Çukurbostanı ("sunken garden of Sultan Selim"),[1] was a Byzantine open-air water reservoir in the city of Constantinople.