West End theatre is mainstream professional theatre staged in the large theatres in and near the West End of London. Along with New York City's Broadway theatre, West End theatre is usually considered to represent the highest level of commercial theatre in the English-speaking world. Seeing a West End show is a common tourist activity in London.There are a total of 38 theatres in the West End, with the Theatre Royal, Drury Lane, opened in May 1663, the oldest theatre in London. The Savoy Theatre – built as a showcase for the popular series of comic operas of Gilbert and Sullivan – was entirely lit by electricity in 1881.The Society of London Theatre (SOLT) announced that 2018 was a record year for the capital's theatre industry with attendances topping 15.5 million for the first time since the organization began collecting audience data in 1986. Box office revenues exceeded £765 million. While attendance in 2019 was down 1.4% compared to the previous year, box office revenues reached a record £799 million. Famous screen actors, British and international alike, frequently appear on the London stage.The majority of West End theatres are owned by the Ambassador Theatre Group, Delfont Mackintosh Theatres, Nimax Theatres, LW Theatres, and the Nederlander Organization.