Just a few years ago, most beer drinkers would have thought their beer had gone bad if they tasted something sour, but these days many craft breweries are fermenting sour and funky batches based on such classic European styles as lambic, oud bruin, Flanders red, gose, Berlinerweisse and others. You can tour the state's breweries hoping to find something special, or you can pull up a bar stool at this Five Points quencher, whose name is Dutch for "good acid." Goed Zuur has one of the most complete lineups of sour beers anywhere in the world, so you can sample bottles of rare originals from Belgium, Germany and Italy or try pours of newer, more experimental brews from Colorado and other U.S. makers. Offset the sour with housemade baguettes and a sampler flight of butters, then pucker up for another round of tart, refreshing and straight-up oddball beers.