In Norse Mythology golden apples grant immortal life to the gods. They are cultivated by the Goddess Idun

Golden apples are associated with a leitmotif. It is first sung by Fafner, when he explains to his brother Fasolt why they must take Freia away from the gods.

The Garden of the Hesperides was Hera's orchard in the east, where either a single tree or a grove of trees bearing immortality-giving golden apples grew. Hera placed in the garden a never-sleeping, hundred-headed, dragon, named Ladon, as an additional safeguard. The eleventh Labor of Hercules was to steal the golden apples from the garden.

A 3D version of Castle of Golden Apples now exists in the Art Sanctuary site in the virtual world of Second life. It is a place to enter and explore. The apple castle is 9 stories high, filled with poems and art work.