Halls of the Dead is a defense town hall building of the Undead in Warcraft III.
As the presence of the Undead in the living world grows stronger, further modifications to the command structure become necessary. Transforming a necropolis into the halls of the dead gives the Scourge power to raise more ancient structures and advance their cruel efficiency. With continued advancement, the halls of the dead may be further upgraded into a Black Citadel.[1]