Pearl Harbor Naval Station, Hawaii

The claim: Oahu, 2,319

What it really is: Naval Station Pearl Harbor is a major Navy base locate next to the city of Honolulu.

The base is a National Historical Landmark, with portions of it open to the public, including the USS Arizona and Utah memorials (which were sunk by the Japanese Imperial Navy on December 7, 1941, and couldn't be raised up), and the USS Missouri.