United States National Register of Historic Places

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All - Architect - John G. Ralston

Adams-Higgins House
Black Hawk County Soldiers Memorial Hall
Black Hawk Hotel
Downey School
Emerson School
Fayette County Courthouse
Fire Station No. 2
Gingrich, Clement B., House
Hand County Courthouse and Jail
Waterloo Masonic Temple
Waterloo Public Library-East Side Branch
Waterloo Public Library (West Branch)
Whittier School


Data from United States Park Service and Wikidata