Marigold Station

Marigold Station is one of the many metro tunnel stations in Fallout 3. The metro station is located in Grayditch. It is the easiest route to take to Falls Church. Unfortunately, it is also filled with giant ants. The Fire Ant Queen from Part 3 "Those!" makes her nest in a cave underneath the lowest level of the metro tunnels.

Traveling farther south, there is a hole in the tracks that leads to the Fire Ant Hatcheries, related to the quest "Those!".

Grady and the Naughty Nightwear
This station is also home to a suicide victim named Grady. You will find his corpse on the large platform with the escalators leading up to it, if you enter via the entrance at Grayditch just keep straight along the path until you see a terminal, Grady's body and a holotape can be found inside. The holotape contains information about the whereabouts of a safe and the key to open this safe, it also adds the map marker for Girdershade. The key is hidden in one of those big red firhose nozzle compartements on the farside of the wall in a storage room inside the station. You can find the safe by turning left away from Doctor Lesko's lab, turning right at the first turn then right again, it is marked by a spinning red emergency light over a easy locked door. Inside is a small room containing loot and said safe. You will find the apparel naughty nightwear within the safe. Be warned that a raider named Lug-Nut will approach you shortly after you take the sleepwear. You can either convince him to leave you alone via speech, give him the sleepwear(not recommended) or kill him.

Appearances
This station only appears in Fallout 3

Behind The Scenes
This metro station is a reference to the "Dunn Loring/Merrifield" station on the Orange Line near Falls Church, VA