While you're in Hawaii to enjoy its beaches and other natural features, spend one day discovering its royal history on this tour of Oahu's royal landmarks – Queen Emma Summer Palace, the Royal Mausoleum and 'Iolani Palace. The three sites – all in the Honolulu area – are listed on the US National Register of Historic Places and offer insight into the dynasties that ruled Hawaii before it became a US territory. Round-trip transport from Waikiki is included.