Labyrinthian is a sprawling Nordic ruin located to the west north-west of Whiterun.
Labyrinthian comprises three main zones: Shalidor's Maze, Lost Valkygg and the Tribune.
 Shalidor's Maze
The Tribune section of Labyrinthian is only accessible when the player is on the quest The Staff of Magnus. This section can be accessed from a large main door or from a trap door atop a tower in the southern end of the ruins. This trapdoor is difficult to get to and leads directly to the final chamber, however it is barred from the other side.
 Labyrinthian Chasm
This area contains at least one Ebony Ore Vein.