The Teatro alla Scala (or La Scala, as it is known), in Milan, Italy, is one of the world's most famous opera houses. The theatre was inaugurated on 3 August 1778. La Scala's season traditionally opens on December 7, Saint Ambrose's Day, Milan's patron saint. All performances must end before midnight; long operas start earlier in the evening if need be. Ticketholders are not allowed to enter after the performance has begun. Buy opera tickets for La Scala.