‘Iolani Palace in downtown Honolulu is the only official state residence of royalty in the U.S. and a national historic landmark. Built in 1882, it was the residence of the last two monarchs of the Hawaiian Kingdom, King Kalākaua and Queen Lili‘uokalani. This American Florentine-style palace features a beautiful Koa staircase, royal portraits and a rich interior. The palace fell into disrepair after the overthrow of the Hawaiian monarchy and was eventually renovated and opened to the public in 1978. Visitors can take guided or self-guided audio tours of the palace to learn about its rich history and see its throne room, living quarters and ancient regalia. The palace is also located in the center of a vital area that is worth exploring, with historical sites, museums and financial and arts districts nearby. Tour options vary based on the day of the week and the time.