The Horned King's citadel

The Horned King's citadel, (alternative called The Ancient Castle) is an ancient bastion, located in the outskirts of Prydain, that serves as the home of the necromancer, the Horned King. An incredible, magnificent, and well-builted fortress, able to defend itself from various threats, in both heroes and villains aside.

The citadel appears in most the villains tournaments context, usually featured as the base of operations of the King and his allies, before being abandoned, after the King's demise, or destroyed by any means. It's archive footage of the citadel's destruction is also used for the toppling of various fortresses in various tournaments, like the Queen's Castle in the second Disney Villains War, the Forbidden Mountains in the second Disney vs. Non-Disney Villains War, and the Icepeak in Heroes vs. Villains War.