The dormitories are located in Ravenclaw Tower on the west side of the school. The common room, which went undescribed in the series until the climax of Deathly Hallows, is round and filled with blue hangings and fat armchairs, has a domed ceiling painted with stars and features a replica statue of Rowena wearing her diadem. Harry also notes that, by day, the Ravenclaws "would have a spectacular view of the surrounding mountains." A logical riddle must be solved to gain entry, whereas the Gryffindor, Hufflepuff and Slytherin common rooms only require a password, indicating that it may be easier for those student from other houses who possess a certain high degree of intelligence to enter this common room than others. Professor McGonagall, the head of the Gryffindor House is able to solve the riddle accurately and it is also shown that Luna Lovegood possesses a sharp mind and wit, one of the traits found in a Ravenclaw student, when she solves the riddle and enters the common room with Harry Potter in the last book.