Ares Spire
From Destinypedia, the Destiny wiki
The Ares Spire was a Golden Age research site located on the planet Mars. It was created by a joint research effort by Clovis Bray Corporation and the Ishtar Collective in order to study and work on Project ECHO, an extrasolar colonization project dedicated to colonizing the Andromeda Galaxy. It is the setting of the Dungeon, Spire of the Watcher.