From Destinypedia, the Destiny wiki
Devil's Spire is the derelict colony ship at the heart of the Cosmodrome. The area includes both the external crew elevator that provides access to the colony ship, and the interior of the colony ship's three spheres. Devil's Spire is accessible during the Story mission Cayde's Stash.
By the time of the SIVA Crisis, the Devil Splicers have cut off the uppermost sphere from Devil's Spire and somehow transported it to Foundry 113, where it has been altered to look like a massive Servitor and serves as the entrance to the Splicers' lair.
Points of Interest
List of appearances