Longmont's Left Hand Brewing celebrated its 21st birthday with a festival highlighting nitro-poured beers -- its own as well as the creamy beers of 21 other breweries, both local and national. The Boulder Circus School was on hand to provide entertainment to go along with the nitrogenated libations, with trapeze artists, sword jugglers and stilt walkers. Proceeds benefited the Left Hand Brewing Foundation. Guests were encouraged to wear costumes with the theme "Labels Come to Life." Photographer Scott Lentz was there to capture the high-flying fun and festive atmosphere.