This is a complete list of Marbles: The Brain Store locations along with their geographical coordinates. Marbles: The Brain Store first opened in 2008. They were a one-of-a-kind specialty store with a collection of hand-picked, expert-tested, certifiably fun ways to build better brains. The store was interactive allowing you to play games, solve puzzles and try out products to find the right one for you. As of 2017, Marbles has closed its retail stores.