Sultanahmet
6th-century Byzantine underground cistern, featuring 336 marble columns in 12 rows. Monumental structure measuring 138 x 64.6 meters, capable of holding 78,000 m³ of water, with 4-meter-thick brick walls.
Built under Emperor Justinian in the 6th century, the Basilica Cistern exemplifies Byzantine hydraulic engineering. Its rectangular structure of 138 x 64.6 meters rests on 336 marble columns arranged in 12 rows of 28. These 8-meter-high columns support a ceiling of brick arches and vaults.
The site hosts modern art installations, creating a dialogue between ancient heritage and contemporary creation.