This cistern the size of a cathedral is an underground chamber of approximately 143 meters by 65 meters - around 9,800 m2 of surface - capable of holding 80,000 m3 of water (other sources point out approximately 100,000 m3). The ceiling is supported by a forest of 336 marble columns, about 9 meters high, arranged in 12 rows of 28 columns separated by 4.8 meters.
basilica cisterna
CHARACTERISTICS