Eraklyon is a planet within the Magic Dimension. It is Sky's and Brandon's home world.
Sky is the current king due to his father, King Erendor, who voluntarily left the throne and gave it to him. Sky's mother Queen Samara is still the current queen until Bloom and Sky are/get married.
Royal palaceEditThe Royal Palace is the place where Sky, former King Erendor, and Queen Samara lives. In Season 3, it looks like it is purple coloured, but in Season 5, it is yellow.