First Floor - This is where newcomers are welcomed, and students and professors gather together for meals and ceremonies.
Entrance Hall - This cavernous hall greets new arrivals at Hogwarts.
Great Hall - The largest room in Hogwarts, this is where students and professors dine beneath a enchanted ceiling.
First Years' Room - This tiny room is where first year students meet before the Sorting Ceremony.
Moaning Myrtle Tunnel - This hidden tunnel leads to the Chamber of Secrets.

Second Floor - Two house stores and a few classrooms and other areas characterize the second floor.
Ravenclaw House Store - This shop in the Ravenclaw tower sells Ravenclaw merchandise.
Slytherin House Store - The Slytherin's house store is located in the Slytherin tower.
Staff Room - A break room for current faculty members (employees) only.
Broom Closet - A storage room for current faculty members (employees) only.

Third Floor - In spite of the forbidden corridor, the third floor is bustling with activity from classrooms and stores.
Gryffindor House Store - A shop for Gryffindor merchandise located in Gryffindor tower.
Hufflepuff House Store - The Hufflepuff shop, located in Hufflepuff tower.
Forbidden Corridor - A nasty three-headed surprise awaits those who dare to open the door to this corridor.
Charms Classroom - Professor Flitwick's Charms class meets here.
Elf Break Room - A break room for kitchen elves only.
Trophy Room - This is where Hogwarts trophies are kept, including the one with Riddle's name on it.
Armory - Rows of armor and ancient arms line this L-shaped room.
Hidden Passageway - Very few Hogwarts students know the location of this secret passage.
Owl Post Service Headquarters - This is the place for all your long-distance communication needs.
One-Eyed Witch Statue - Rumor has it that a secret passage lies beneath this witch, but access is no longer available.

Fourth Floor - In addition to the library and classrooms, three common rooms are accessible to house menbers on this floor.
Gryffindor Common Room - Only Gryffindors permitted except during guest visitation hours.
Ravenclaw Common Room - Only Ravenclaws permitted except during guest visitation hours.
Hufflepuff Common Room - Only Hufflepuffs permitted except during guest visitation hours.
Library - This is where students come for books and stories.
Hospital Wing - Illnesses and accidents are treated promptly and kindly.
Prefects' Lounge - Prefects and weekly house member winners are pampered here.
Mirror of Erised Room - Gaze into the mirror here to see your heart's desire.
Elf Break Room - Another room for kitchen elves and staff members to take a break.

Fifth Floor - Spiral staircases lead upwards from the fourth floor to the fifth floor's towers.
Girls' Dormitories - A spiral staircase leads to the girls' dorms from the fourth floor common rooms.
Boys' Dormitories - Another spiral staircase leads to the boys' dorms from each of the fourth floor common rooms.
Divination Classroom - A spiral staircase and a trapdoor lead you to Professor Trelawney's classroom.
Astronomy Tower - This is the place to come for excellent views of the night skies.

Sixth Floor - Sky gazers and curious students climb to the top of the astronomy tower's windowed dome.
Observation Gallery - This gallery atop the astronomy tower offers excellent views of the stars and Hogwarts grounds.

Dungeons - Beneath the castle lies dungeons, deathday celebrants, and dorms.
Deathday Party Dungeon - Nearly Headless Nick entertains friends and fellow phantoms underground.
Potions Classroom - Professor Snape teaches Potions in this dungeon.
Slytherin Common Room & Dormitories - The Slytherin common room & dorms lie in the bowels of the castle.
Chamber of Secrets - An evil force once threatened Hogwarts students from within this hidden underground chamber.
Moaning Myrtle Tunnel - This hidden tunnel leads from the First Floor bathrooms to the Chamber of Secrets.