Unfortunately one of the most acessible girl's bathrooms in the castle, Myrtle's bathroom also happens to be the noisiest of them and people try to avoid going in there if they can. There's also this tap that doesn't work, but you know, it's all part of the quirks of Hogwarts.

For those interested in jobs with Gringotts, or anything to do with ancient treasure hunting, you'll need this subject. However, whatever you do, do NOT, I repeat do NOT, make the mistake between Erthwas and Earthas. It can be fatal.

Want to learn how to turn a gerbil into a teacup? Other way around? McGonnagall will teach you how to in transfiguration, truly a staple of any magical education.

This is where First Years will learn how to float Feathers and Marauders will learn how to charm Snape pink. All in all, a fun subject, and little Flitwick always makes the subject practical and notoriously noisy.

The Library, a favourite of those who are academically minded. Also a favourite of those who want to access the restricted section. Just don't get caught, the penalty is quite severe. As is treating the books inappropriately.

Hufflepuffs reside here. The common room is protected by the portrait of Borris the Bewildered. The common room looks almost as if a swarm of bees attacked it.