Honolulu, on the island of Oahu’s south shore, is capital of Hawaii and gateway to the U.S. island chain. The Waikiki neighborhood is its center for dining, nightlife and shopping, famed for its iconic crescent beach backed by palms and high-rise hotels, with volcanic Diamond Head crater looming in the distance. Sites relating to the World War II attack on Pearl Harbor include the USS Arizona Memorial are all in Honolulu.