Dungeness on Cumberland Island, Georgia, is a ruined mansion that is part of a historic district that was the home of several families significant in American history. James Oglethorpe first built on Cumberland Island in 1736, building a hunting lodge that he named Dungeness. The next Dungeness was the legacy of Revolutionary War hero Nathanael Greene, who had acquired 11,000 acres (45 km²) of island land in exchange for a bad debt. His widow built a four-story tabby mansion in 1803, over a Timucuan shell mound.