Petersburg County Virginia (Historic Districts) has 15 places on the National Register of Historic Places including 5 places of Statewide significance. Significant places include Centre Hill Historic District, Folly Castle Historic District, Petersburg Courthouse Historic District, Petersburg Old Town Historic District and Poplar Lawn Historic District.
Some of the country's most noteable architects helped create the Petersburg County places including Thomas U. Walter, Lee, William Edward, Jr., Harrison Waite, R.A. Machen and Petersburg Garden Club. Prominent architectural styles found in Petersburg Country are Italianate, Colonial Revival and Federal.