The nation’s flagship theatre complex comprises three auditoriums for performances. Likened by Prince Charles to a nuclear power station, the theatre's purpose-designed architecture is considered an icon of the brutalist school. Fantastic backstage tours lasting 1¼ hours (adult/child £9.50/8.25) are available. Every tour is different but you're likely to see rehearsals and changes of sets or bump into actors in the corridors. There is at least one tour per day, and often more. Consult the website for exact times and make sure you book.
There are also architecture tours (£12.50), family tours (£9.50) and costume tours (£12.50).