Meagher County Montana has 5 places on the National Register of Historic Places including 1 place of National significance and 1 place of Statewide significance. Significant places include Fort Logan and Blockhouse and Union League of America Hall, Parberry Block East, Sherman, Byron R., House and Wellman Block.
The famous person Byron R. Sherman is associated with one of more of the Meagher County historic places.
Some of the country's most noteable architects helped create the Meagher County places including Mr. Soos. Prominent architectural styles found in Meagher Country are Romanesque and Greek Revival.