The Roman Catholic Diocese of Honolulu comprises nine vicariates forane consisting of its member parishes.

Sitka Spruce Park is a public park in the city of Unalaska, Alaska. The roughly 5-acre (2.0\u00a0ha) park is located on Biorka Drive on Amaknak Island, south of Unalaska Airport. It is one of the few places on the island where there are a significant number of trees. A small part of the park is a National Historic Landmark, as it was the site of the earliest documented afforestation in North America. In 1805, Russian agents planted an unknown number of Sitka spruce trees in the area, of which six were documented to be surviving in 1978.

Dutch Harbor is a harbor on Amaknak Island in Unalaska, Alaska. It was the location of the Battle of Dutch Harbor in June 1942, and was one of the few sites in the United States to be subjected to aerial bombardment by a foreign power during World War II. It was also one of the few sites, besides the attack on Pearl Harbor in Hawaii, in incorporated U.S. territory to be bombed by the Japanese in the war.

Dutch Harbor is now the home of an important fishing industry.

The Aleutian World War II National Historic Area is a U.S. National Historic Site on Amaknak Island in the Aleutian Island Chain of Alaska. It offers visitors a glimpse of both natural and cultural history, and traces the historic footprints of the U.S. Army Base, Fort Schwatka, located at the Ulakta Head on Mount Ballyhoo. The fort, 800 miles west of Anchorage, the nearest large urban center, was one of four coastal defense posts built to protect Dutch Harbor (crucial back door to the United States) during World War II; Fort Schwatka is also the highest coastal battery ever constructed in the United States. The other Army coastal defense facilities were Fort Mears, Fort Learnard, and Fort Brumback. Engineers designed the concrete observation posts and command stations to withstand earthquakes and 100\u00a0mph winds. Although today, many of the bunkers and wooden structures of Fort Schwatka have collapsed, the gun mounts and lookouts are among the most intact in the country.

In 1996, the United States Congress designated this a National Historic Area as a way of educating future generations both about the history of the Aleut people, and the role the Aleutian Islands played in the defense of the United States in World War II. It is owned and operated by the Ounalashka Corporation but as an affiliated area of the National Park Service receives funding and technical assistance for development and preservation.