At the Imperial Treasury Vienna in the Hofburg Palace, treasures such as the Austrian Imperial Crown, the insignia of the Holy Roman Empire with the Imperial Crown, and the Holy Lance are waiting. Other highlights include the Order of the Golden Fleece and parts of the immensely opulent treasure of the Dukes of Burgundy from the 15th century. Also on display is the original jewelry of Empress Elisabeth and legendary artifacts such as the agate bowl associated with the Holy Grail, the world’s largest cut emerald, and the horn of the mythical unicorn.