Robertson County Texas has 5 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Robertson County Courthouse and Jail, Allen, Robert C., House, Calvert Historic District, Franklin Carnegie Library and Hammond House.
Some of the country's most noteable architects helped create the Robertson County places including F.E. Ruffini, William W. Larmour, Wayne Patterson and W.T. Ingraham. Prominent architectural styles found in Robertson Country are Colonial Revival, Queen Anne and Gothic Revival.