Iolani Palace, in the capitol district of downtown Honolulu in the U.S. state of Hawaii, is the only royal palace in the United States used as an official residence by a reigning monarch and is a National Historic Landmark listed on the National Register of Historic Places.
Iolani Palace is the only royal palace in the United States. This is in the capitol district of downtown Honolulu in the U.S. state of Hawaii. These United States are used as an official residence by a reigning monarch. Iolani Palace is a National Historic Landmark. This is in the capitol district of downtown Honolulu in the U.S. state of Hawaii. This National Historic Landmark is listed on the National Register of Historic Places.