Empress Sisi’s favorite mirror sits at the top of the Royal Staircase. Sisi was one of the earliest “gym rats,” creating her own workout room where she exercised fanatically to keep her waist tiny. (She stood around 5’8″ tall and weighed about 110 pounds.) She also indulged in lots of fad diets and odd beauty regimens, including regularly shampooing her ankle-length hair in eggs and cognac to keep it shiny.