Douglas County Washington (Page 2) has 4 places on the National Register of Historic Places including 2 places of National significance. Significant places include Southern Columbia Plateau and Okanogan Highlands Site No. 45DO1244 and Southern Columbia Plateau and Okanogan Highlands Site No. 45DO1245, St. Joseph's Catholic Church, Waterville Hotel dating back to 9999.
Some of the country's most noteable architects helped create the Douglas County places including Bell & Haskins. Prominent architectural styles found in Douglas Country are Romanesque and Tudor Revival.