Houston, Texas
Houston is the most diverse metropolitan area in Texas and has been described as the most racially and ethnically diverse major city in the U.S. It is the most populous city in Texas and the fourth-most populous city in the United States. It’s closely linked with the Space Center Houston, the coastal visitor center at NASA’s astronaut training and flight control complex. The city’s relatively compact Downtown includes the Theater District, home to the renowned Houston Grand Opera, and the Historic District, with 19th-century architecture and upscale restaurants.