Classroom Eleven is a classroom on the ground floor of Hogwarts Castle. It was used by the Centaur Firenze, who taught the subject of Divination, since he could not climb into the classroom on top of the North Tower. Albus Dumbledore changed the room to look like the forest, Firenze's home. The floor was mossy and trees were growing out of it, the branches covered the windows and the ceilings. As leaves covered the windows, it made the room have a green light.
|Professors: Sybill Trelawney · Firenze|
|Known Seers: Calchas · Cassandra Vablatsky · Cassandra Trelawney · Inigo Imago · Mopsus · Professor Mopsus · Unidentified female Seer · Unidentified male Seer|
|Textbooks: The Dream Oracle · Unfogging the Future|
|Methods: Astrology · Cartomancy · Catoptromancy · Crystal-gazing · Crystal ball · Dream interpretation · Fire-omens · Heptomology · Ichthyomancy · Palmistry · Ornithomancy · Tarot cards · Tessomancy|
|Divination at Hogwarts: Divination (class) · Divination Classroom · Divination staircase · Sybill Trelawney's office · Classroom 11|