Austin is the capital of Texas, known as the "Live Music Capital of the World." The city boasts a population of 790,390 people. It is located in Central Texas, and is the fourth largest city in the state. Austin sits on the Colorado River, with three man-made lakes in the city. Climate in Austin offers hot and humid summers and cool winters. Winter temperatures average 65 degrees, with January the coolest month of the year. Austin-Bergstrom International Airport serves the Austin area and is located just southeast of the area. A tollway system operates in Austin, and Capital Metro provides the city's public bus transportation. A Greyhound Bus Station also operates inside of the city and websites like Car Rental Express offer cheap car rental options also.