- https://www.iolanipalace.org/ - What: Former residence of the Hawaiian monarchs - Where: Downtown Honolulu - Various tours, need to book ahead of time (limited days available) - You can take a guided tour or a self-guided audio tour of the Palace Tuesday through Saturday. If you’re facing the Palace, the ticket office is to the left on the State Capitol side of the building. One of Oahu’s most important historic places, Iolani Palace plays an integral part in understanding the history and culture of Hawaii. Learn more about the Iolani Palace.