Travelers are voting Heart of Neolithic Orkney and Scotland as the best places to visit in St. Mary's County. There are 1 place to visit in Irvington a city just 31 km from St. Mary's County and 1 place to visit in Colonial Beach which is 33 km distant. The most popular of these are Robert M. Hughes Memorial Library in Irvington and George Washington Birthplace National Monument in Colonial Beach. You can find 250 places to visit in Maryland and 19228 places to visit in the country of United States. Our members favorite in Maryland is Baltimore and New York City is the top pick in United States. Want more? Check out our map of places to visit in St. Mary's County.