Texas has a varied geography and climate due to its large size. It has coastlines, plains, and mountainous areas in the west. Texas has a population of over 24 million, with the largest cities being Houston, San Antonio, and Dallas. The state has a diverse economy focused around oil/gas, agriculture, and technology. Some of the top universities include the University of Texas at Austin and University of Houston. Popular sports include basketball, with NBA teams like the Spurs, Rockets, and Mavericks, as well as rodeos and baseball. The cuisine features barbecue, biscuits and gravy, and breakfast tacos.