The Library of Alexandria
I — Path of Inquiry
The Library of Alexandria held what a civilization knew. Scholars argued in it, copied in it, corrected one another in it, and catalogued what they had. Then it was lost — not in one night and not to one cause, but gradually, to fire and neglect and indifference, until what it held existed only where it had already been copied out.
It is the Sanctuary of Inquiry because it is both halves of the Path at once. Knowledge is gathered by people who disagree, and it survives only as long as someone keeps copying it forward.
The ancient Library cannot be visited. Its precise site is not known, and the city has been built over it many times. The Bibliotheca Alexandrina stands near where it stood, and is the nearest a Pilgrim can come.