A wide yard, with an underground cistern that served to collect and preserve water for residents.

The piazza is named after the underground cistern (Cisterna) built in 1287.

Daniel walked to the underground cistern built where once the foundation of a chapel had been laid.

Located outside the walls, this was perhaps the spring that filled the citadel's underground cistern.

Water is provided by a catchment system on the roof that feeds a 1,200-gallon underground cistern.

An ice house is located on the west side, along with an underground cistern which stored rain water running off the roof.

These include large underground cisterns, some pre-dating the Crusader period.

On the east side there are two entrances; to the maqam, and to an underground cistern.

There were three underground cisterns that supplied water to the castle occupants.

This amazing construction is actually an underground cistern, one of many that once stored Constantinople's water supply.