Buenos Aires is the home of the Teatro Colón, an internationally rated opera house. There are several symphony orchestras and choral societies. The city has numerous museums related to arts and crafts, history, fine arts, modern arts, decorative arts, popular arts, sacred art, theater and popular music, as well as the preserved homes of noted art collectors, writers, composers and artists. The city is home to hundreds of bookstores, public libraries and cultural associations (it is sometimes called "the city of books"), as well as the largest concentration of active theaters in Latin America. It has a zoo and botanical garden, a large number of landscaped parks and squares, as well as churches and places of worship of many denominations, many of which are architecturally noteworthy.