Hogwarts School of Witchcraft and Wizardry discussion

The entrance to the Slytherin common room is located behind a stone wall in the dungeons of Hogwarts Castle. A password is required to enter it. The common room itself is a dungeon-like room with greenish lamps and leather chairs and couches. The room extends partway underneath the lake, giving the light in the room a greenish glow. It has a very grand atmosphere, but a very cold one.