Houston is the largest city in the state of Texas, and the fourth-largest city in the United States.Rated as a global city, Houston's economy has a broad industrial base in energy, manufacturing, aeronautics, and transportation.The Port of Houston ranks first in the United States in international waterborne tonnage handled and second in total cargo tonnage handled.
Houston received the official nickname of "Space City" in 1967 because it is the location of NASA's Lyndon B. Johnson Space Center.
The Museum District's cultural institutions and exhibits attract more than 7 million visitors a year. Notable facilities the include The Museum of Fine Arts, Houston Museum of Natural Science and the Contemporary Arts Museum Houston.
The Theater District is a 17-block area in the center of downtown Houston that is home to the Bayou Place entertainment complex, restaurants, movies, plazas, and parks. Other tourist attractions include the Galleria (Texas's largest shopping mall located in the Uptown District), Old Market Square, the Downtown Aquarium, and Sam Houston Race Park.