Aleutian Islands County Alaska has 22 places on the National Register of Historic Places including 21 places of National significance and 1 place of Statewide significance. Significant places include Adak Army Base and Adak Naval Operating Station, Anangula Archeological District, Ananiuliak Island Archeological District, Atka B-24D Liberator and Attu Battlefield and U.S. Army and Navy Airfields on Attu.
Prehistoric cultural affiliation(s) include Aleutian and Eskimo-Aleut dating back to 8499 BC.
Some of the country's most noteable architects helped create the Aleutian Islands County places including Mooser & Piser, Consolidated Aircraft, Lockheed Aircraft Co., Alaska Commercial Co., US Army and PA Chester Iron Foundry. Prominent architectural styles found in Aleutian Islands Country are .