Hyrule (ハイラル, Hairaru) is the main land that much of the Zelda universe takes place in. It is a fantasy realm that is the setting of many Zelda games.
In Super Smash Bros.
Hyrule Castle is the stage representing the Hyrule Castle that assumes lordship over the kingdom of Hyrule.
In Super Smash Bros. Melee
The Temple stage represents a ruined temple located somewhere in Hyrule.
In Super Smash Bros. Brawl
The Bridge of Eldin shows the Eldin Province, near Kakariko Village.