Bakersfield is the 11th fastest growing city in California. It is California's third largest inland city, after Fresno and Sacramento. The city's economy relies on agriculture, petroleum extraction and refining, and manufacturing. Bakersfield's climate is a semi-arid dry steppe climate (Koppen climate classification BSh), defined by long, hot, dry summers and brief, cool, sometimes rainy winters. In fact, Bakersfield is one of the sunniest cities in the U.S. (just behind Yuma, Arizona and Palm Springs, California). Bakersfield enjoys long-lasting, mild autumns and early springs, giving the region a unique climate suitable for growing a wide variety of crops. Garces Circle, Mount Vernon Sewage Treatment Plant, Rio Bravo Equestrian Center and Ming Seven Golf Course are notable attractions