Room of Seven Circles

The Room of Seven Circles is a mysterious pocket-dimension in which a person's very Soul is put to the test. This Room was apparently created by the Order of Philosophers and it is used extensively by them even into modern times. 
The Room exists both within and without our world simultaneously and is difficult to describe at times. It is filled with various creatures whose exact shapes are drawn from the minds of those inside the Room. The purpose of the Room is to put people to test, most especially their sanity and virtues. 
References:
-http://en.wikipedia.org/wiki/Silent_Hill_4:_The_Room