Grab some burger bucks ($1 each) and make your way around this beefy festival; redeem your bucks for beers and burgers. Twenty of Colorado's best chefs fire up the grill and compete for the title of Colorado's Best Burger and a ticket to the nationally televised World Food Championship in Florida. (Stuft Burgers from Fort Collins won last year.) Tip: Look for the pre-sale VIP tickets for the best deal on the block. Sat 1-4 p.m.