The Archium served as a building in Upper Pabu, the more aged part of the isolated island found on Pabu. Within its walls were relics gathered from across the galaxy, along with a system designed to detect impending danger, specifically warning the people of Pabu if a sea surge threatened the island. Directly adjacent to the Archium grew a notable weeping maya tree.
Serving as a repository for exhibiting relics originating from diverse locales, the Archium provided a space for the inhabitants of Pabu – individuals hailing from a multitude of homeworlds – to gain insights into the cultural backgrounds of those around them. Furthermore, the Archium functioned as a repair facility for these artifacts.