The term HOME OF IOLANI PALACE is solved by the four-letter word OAHU. Oahu is an island in the Hawaiian archipelago and is the third largest of the Hawaiian Islands. It is home to the Iolani Palace, the only royal palace in the United States. The palace was built in 1882 and served as the official residence of the Hawaiian monarchy until the overthrow of the Kingdom of Hawaii in 1893. Today, the palace is a popular tourist attraction and a symbol of Hawaiian culture and history.