Was an exhibit in The Museum of History, now a home to many ostracized non-feral ghouls of Washington, D.C.It is located inside the Museum of History, and exists as a small city, complete with a bar, inn, clinic, clothing store, and even a self-proclaimed “hair stylist”.Most humans are tolerated, as long as they don’t cause trouble. The Brotherhood of Steel are not welcome because of their hostility towards ghouls and the Brotherhood’s tendency to shoot them on sight.
The museum was featuring an exhibit on the concepts of Hell and the afterlife during the time before the Great War, as most of the remaining exhibits (including the name of that section of the Museum as well) are all themed as such. Doctor Barrows is the mayor of Underworld. Because of the small nature of the town, his civic duties take a backseat.