New York, NY
The Metropolitan Opera Guild offers a 90‑minute guided tour that takes visitors through the workshops where set designers, costume makers, and wig technicians craft the elements of an opera production. The route includes rehearsal spaces, dressing rooms, a ten‑story backstage area, and the auditorium itself. Groups of twenty or more can receive a discount, and tickets must be booked in advance.
http://www.metoperafamily.org/education/calendar/backstage.aspx