Ganon's Castle

Ganon's Castle is a location from The Legend of Zelda: Ocarina of Time. The castle is located North of Hyrule Castle Town and is home to the last dungeon in the game, Inside Ganon's Castle, which floats in the middle of a lava pit.

The area is the ruins of Hyrule Castle after its takeover by Ganondorf. A single Gold Skulltula can be found on the remnants of the Hyrule Castle's gate. Also in the area is a Great Fairy Fountain, the same location of the Fairy Fountain where Link learned Din's Fire. In order to access it, however, Link must have acquired the Golden Gauntlets from the Shadow Barrier section of Ganon's Fortress. The Great Fairy inside teaches Link Double Defense.

Story
Ganon's Castle replaces Hyrule Castle seven years later, after Ganondorf has taken hold of the kingdom. Link cannot access it without the aid of the Seven Sages. After waking the sages, a bridge of energy is created to allow access to the tower. The battle with Ganondorf commences at the top of the tower, where Link must deflect his attacks back at him. After the battle, the castle starts to collapse, and Link must escape with Zelda. After the castle is destroyed, Ganondorf emerges from the rubble and transforms into Ganon.

In the Ocarina of Time Manga
In the manga of Ocarina of Time, Link arrives in horse to the castle along with Nabooru, Sage of Spirit. In the castle surroundings they find a horde of ReDeads; after they beat them, Nabooru is taken along with the other Sages to create the bridge. Inside the castle the barriers part is completely skipped and Link goes directly to the tower. Everything else is really close to the game, except for dialogues and that Ganondorf uses a sword in the tower battle.