San Antonio is located in the south–central part of Texas in an urban region known as the Texas Triangle. Sites to see in San Antonio include the many Spanish missions, the Alamo, the River Walk, the Tower of the Americas, the Alamo Bowl, Marriage Island and the SeaWorld and Six Flags Fiesta Texas theme parks. The city of San Antonio receives approximately 26 million tourists per year according to the San Antonio Convention and Visitors Bureau. The city is home to the four-time NBA champion San Antonio Spurs and the annual San Antonio Stock Show & Rodeo, one of the largest in the country.