Missed out on registering for the Brooklyn Half? Not even remotely in shape to run 13 miles but can bike around the borough no prob? There’s another Brooklyn-wide event on Saturday that will feel like a major accomplishment when you finish it. Brooklyn Public Library’s second annual Bike the Branches is a choose your own adventure-style ride, and these detailed maps will help you pick your perfect trip–there are a dozen that will please history buffs, baseball fans, true crime lovers, beer nerds and culture junkies. On each route you’ll pedal past a number of Brooklyn’s 60 neighborhood libraries, and benefit them all just by registering for an awesome ride you’ll never forget. You can also register in teams of up to 10 and make the ride more of a sporting event–the top three adults and children who visit the most branches will receive prizes at the end of the day.