LEGO fans of all ages will love the Discovery Center. There are displays, rides, 4-D movies, and of course tons of LEGOS. Tour the factory, build and test LEGO racecars, take part in Master Builder workshops, check out the interactive mini version of the city of Boston (built using 1.5 million bricks!), and much more. Themed events around the holidays bring even more fun. Monthly Adult Nights let grownups relive their LEGO-filled youth.