When I visited one of these in Agra last Fall, I assumed it to be either a bath or an aquarium to keep exotic animals. Some had so many tiny windows and grills,

When I visited one of these in Agra last Fall, I assumed it to be either a bath or an aquarium to keep exotic animals. Some had so many tiny windows and grills, I thought they might be designed to use as laundry places. It's interesting that all of these were simply wells.