Oslo being the first Opera House in the world to let people walk on the roof of the building. The foyer and the roof are also used for concerts as well as the three stages. Most great Norwegian authors have lived in Oslo for some period in their life. For instance, Nobel Prize-winning author Sigrid Undset grew up in Oslo, and described her life there in the autobiographical novel "Elleve år" (1934; translated as "The longest years"; New York 1971). The playwright Henrik Ibsen is probably the most famous Norwegian author. Ibsen wrote plays such as "Hedda Gabler", "Peer Gynt", "A
Michael Kahn (theatre director) III", "The Beaux' Stratagem", "Love's Labour's Lost", "Othello", "Lorenzaccio" (world premiere), "Macbeth", "Cyrano", "Five by Tenn", "The Winter's Tale", "The Silent Woman", "The Oedipus Plays", "The Duchess of Malfi", "Timon of Athens", "Don Carlos", "Hedda Gabler", "King Lear", "Coriolanus", "Camino Real", "A Woman of No Importance", "King John", "The Merchant of Venice", "Peer Gynt", "Sweet Bird of Youth", combined "Henry VI, Parts 1, 2 & 3", "Mourning Becomes Electra", "Henry V", "Volpone", combined "Henry IV, Parts 1 & 2", "Richard II", "The Doctor's Dilemma", "Hamlet", "Mother Courage and Her Children", "Much Ado About Nothing", "Measure for Measure", "Richard III", "Twelfth