Located in Olney, Maryland, the Olney Theatre Center offers a diverse array of professional productions year-round that enrich, nurture, and challenge a broad range of artists, audiences and students. One of two state theaters of Maryland, Olney Theatre Center is situated on 14 acres (57,000 m2) in the middle of the Washington–Baltimore–Frederick "triangle." There are three indoor venues: the Historic Theatre, the Mainstage, and the Mulitz-Gudelsky Theatre Lab. There is also an outdoor venue, the Root Family Stage. The Mainstage seats 429 patrons, with a small theatre lab added in 1999.