Iolani Palace was a royal palace where the Hawaiian Monarchy lived and reigned until overthrown by the US Government. King Kalakau had it built it was completed in 1892 and the last reigning monarch who lived there was Queen Lili'Uokalani who was placed under house arrest and forced to turned over the Islands to US control as battleships were staged off shore pointed at the island. This palace is magnificent, beautiful, many of the objects belonging to the place were sold or auctioned after the takeover and have since reclaimed, however there are many still to be found or located. Out of respect you are asked to where appropriate attire when visiting, where booties to protect the wood floors. I would recommend the guided tour or audio since there is so much history to learn from what was once a great monarchy. Recently a movie was released name Princess Ka'iulani, in the movie you will see many scenes with the palace.