The Underworld Metro Path is a hidden location in the Fallout 3 video game. It is a secret underground railroad that connects the Underworld, a ghoul-populated area, to the rest of the Capital Wasteland.
The path is not marked on any map, and it is easy to miss. To find it, the player must travel to the Meresti Metro Station and look for a small, unmarked door in the back of the station. The door is locked, and the player will need to pick it to get inside.
