Location from Overlord by Kugane Maruyama
A ten-floor underground dungeon from the game YGGDRASIL that was transported to the New World — fortress, home, and seat of power for the Sorcerer King and his Floor Guardians.
The Great Tomb of Nazarick is an impenetrable underground fortress spanning ten floors, each guarded by a Floor Guardian of immense power. Originally a guild base in the game YGGDRASIL, it was transported to the New World along with its master Ainz Ooal Gown and all its NPC inhabitants, who became sentient. The tomb houses thousands of servants, from the lowliest skeleton to the supreme Floor Guardian Overseer Albedo. Its defenses repelled 1,500 players at peak; no New World force has come close to breaching it. The 9th Floor contains Ainz's personal quarters and is where Renner and Climb now reside as imp demons. The Frozen Prison holds captured enemies including Antilene Heran Fouche. Visiting the tomb has psychologically broken several New World leaders, most notably Jircniv, who developed paranoia after his diplomatic visit.
Also known as: Nazarick, The Great Tomb, Great Tomb of Nazarick