While California undoubtedly produces excellent wine, it's got stiff competition these days. The United States is as of 2016 home to 238 American Viticultural Areas, or AVAs–grape-growing regions designated by the Alcohol and Tobacco Tax and Trade Bureau. We asked a panel of wine industry experts to pick their favorite American wine regions. Vote for your favorite out of this pool of 20 nominees once per day until voting ends on Monday, August 20 at noon ET.