Hawaii is an isolated volcanic archipelago in the central Pacific Ocean famous for its beaches, tropical foliage, and rugged volcanic landscapes. The islands were first settled by Polynesians around 400 CE. Oahu is the most populous island and contains the state capital of Honolulu along Waikiki Beach and the WWII memorials at Pearl Harbor. Popular tourist attractions on Oahu include Waikiki Beach, Diamond Head State Monument known for its hiking trail and views, and Pearl Harbor Memorial honoring those who died in the 1941 attack. Hawaiian cuisine is a fusion of many cultures and ingredients brought by immigrants from Asia and the Americas.