Akron is home to E. J. Thomas Hall, one of three Akron performance halls. Regular acts include the Akron Symphony Orchestra, Tuesday Musical Club, and Children's Concert Society. World-class performances events include Broadway musicals, ballets, comedies, lectures, entertainers, attracting 400,000 visitors annually. The hall seats 2,955, divided among three tiers. To maintain top-notch acoustic sound, the counter-weighted ceiling is adjustable, altering the physical dimensions of the hall. Located downtown is the Akron Civic Theatre, which opened in 1929 as the Loew's Theater. This atmospheric-style theater was designed by John Eberson and contains many Moorish features including arches and decorative tiles. It features elaborate wood carvings, alabaster statuary, and European antiques. The theater seats 5,000. Behind it on the canal is the Lock 3 Park amphitheater, which annually host the First Night in Akron. The Akron Art Museum also downtown, features art produced since 1850 along with national and international exhibitions. It opened in 1922 as the Akron Art Institute, in the basement of the Akron Public Library. It moved to its current location at the renovated 1899 post office building in 1981. In 2007, the museum more than tripled in size with the addition of the John S. and James L. Knight Building, which received the 2005 American Architecture Award from the Chicago Athenaeum while still under construction.