An enormous domino build will soon be taking over the lobby floor of the Maryland Science Center. Domino Day, presented by Domino Sugar, is back on Saturday, September 16 from 10:00am to 2:00pm. This year the domino display will form a mesmerizing variety of patterns and effects all centered around the theme: US National Parks! The big topple will take place at 1:00pm, but come early and hang around afterward to test designs of your own making and to learn how to build domino tricks that will have you toppling like a pro!