Great Bath: In Mohenjodaro, a very special tank, which archaeologists call the Great Bath, was built in this area. This was lined with bricks, coated with plaster, and made water-tight with a layer of natural tar. There were steps leading down to it from two sides, while there were rooms on all sides. Water was probably brought in from a well, and drained out after use. Perhaps important people took a dip in this tank on special occasions.