The Well of Souls

Somewhere, Beyond the Wall, on a secluded, wind blown hilltop, lies the Well of Souls. There are no signs of the people who dug this well, or why it lies in its current location. Those who know of its location are few. Its only description is of a low stone circle atop a hill. The area surrounding it is cluttered with spikes and grappling hooks and bits of old rope. These are the only remains of those who tried to climb down into its depths.
If you listen carefully, it is said, you can hear their low mournful cries.