Fortress of the Guardian

The Guardian Fortress is, as the name says, the centre of power of the Guardian in Britannia in Ultima IX, based on the island of Terfin. The outside of the fortress is cut out of the rock, looking like a huge Guardian-head, with the mouth acing as the entrance. High walls surround it as protection against intruders. Inside is a huge complex, where dozens of Wyrmguards live, protecting the central base of the Guardian. The biggest room is the throne room, where the Guardian is located when on Britannia, together with his Mirror of Darkness.

The Avatar first entered the fortress after being summoned (and soon cast out) by the Guardian. Later, the Avatar entered it through a secret passage to reach the throne room and prepare for the final fight with the Guardian.

Trivia

 * There are a number of inconsistencies regarding the fortress. For one, it is on the map, yet the people don't know of the Guardian. Also, it looks totally different from the ending of Ultima VIII (it had shrunken considerably).
 * Concept art from the game indentified the fortresse as the "Tower of Exultation". While it is still possible that it was meant to be the name of the place, it is however never named as such during the course of the game.