The B&O is the place to be for family fun this Independence Day weekend! Take our Maryland on the Rails tour and train rides on the Mile One Express, have fun with tie-dye and chalk art, and enjoy ice cream & Red, White & Blue popsicles in the café throughout the weekend! Plus, cold beer will be available for purchase on Observation Car train rides! Sat, July 3 Maryland on the Rails Junior Tour: 10:30 AM Mile One Express Train…