Carroll County Maryland (Vacant / Not In Use) has 4 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Antrim, Hampstead School, Keefer--Brubaker Farm, McKinstry's Mills Historic District.
Some of the country's most noteable architects helped create the Carroll County places including Col. Andrew E. Ege, Joseph Wolfe, E.B. Starr and N. Claud Erb. Prominent architectural styles found in Carroll Country are Greek Revival and Tudor Revival.