Calling all builders! Drop in each month to tackle a special LEGO building challenge, this time: Engineer a top that spins the longest, balances the best, or wins a head-to-head spin battle OR just build whatever you dream up! Creative constraint cards will be available for anyone looking to up the challenge and finished creations will be displayed in the library until the next session (one per participant please). Children under 9 must be accompanied by an adult.