The Fortress where the souls of the exiles and Vizards alike live inside this safe haven, protected from hollows attacks. Inside lies the various large halls where most of the rogues shinigami help out the community.A city inside a Fotress.
The Order's base is where the exiles and rouge shinigami were picked up and left to nowhere to go, The Vaizard Society takes up these people where the Seiretei has leave them to exile. The Vaizard Pentagon Order rules over these lands near the white desert, with their fortress unseen and hidden. And are only shown to those who seeks it.
Where top scientist from various community, mostly are exiled or voluntary exiles came to Research on stuff and using their technology to collect data, and manipulate the flow of information inside seiretei.