Houston is the most populous city in the U.S. state of Texas, fourth-most populous city in the United States, most populous city in the Southern United States, as well as the sixth-most populous in North America, with a population of 2,304,580 in 2020. Nicknamed the “Bayou City”, “Space City”, “H-Town”, and “the 713”, Houston has become a global city, with strengths in culture, medicine, and research. The city has a population from various ethnic and religious backgrounds and a large and growing international community. Houston is the most diverse metropolitan area in Texas and has been described as the most racially and ethnically diverse major metropolis in the U.S. It is home to many cultural institutions and exhibits, which attract more than seven million visitors a year to the Museum District. The Museum District is home to nineteen museums, galleries, and community spaces. Houston has an active visual and performing arts scene in the Theater District, and offers year-round resident companies in all major performing arts.