Elevator

Elevators are recurring items in the The Legend of Zelda series.

Zelda II: The Adventure of Link
Eleveators allow Link to travel from one floor to another, from either above or below, when he enters it. They are usually found in Palaces, but they are also found on Death Mountain.

The Legend of Zelda: Ocarina of Time
There is only one elevator in the entire game, and it is found in the Forest Temple. It leads to Phantom Gannon, the temple boss. Link can not use the elevator until he has defeated all of the Poe Sisters, and relighted the torches.