Moaning Myrtle's Bathroom

The Girls Bathroom is situated in Hogwarts. It has been out of order ever since Moaning Myrtle was killed. She now haunts it so that nobody wants to go in there.

Harry, Ron and Hermione used it to make Polyjuice Potion in their second year.

Chamber of Secerets
It currently holds the entrance to the Chamber of Secrets. To get in the doorway needs a someone to speak in Parseltongue and say open. When that has happened the sink with the snake picture on the side moves into the floor and a tunnel is reviled.