: Looking at the location concept art..I feel like it could be possibly be
: Precursor. Something about the architecture and the way it integrates with
: the landscape around it sorta fit with Bear's descriptions.

: I think the colors used also help convey Precursor. Tan with red
: highlights...they take me right to The Flood (Precursor)...with tan bodies
: and red tipped tentacles.

: Looking at the barren/desolate nature of the landscape...I wonder if this
: could be a place within Path Kethona? Omega Halo fired on it (which should
: have destroyed Precursor architecture)...so maybe not...but could be
: another Precursor planet.

Architecture isn't my major, so please pardon my ignorance, but I get some Islamic and Russian vibes from the domes on the structure with the flags and the one in the background. The styling of the pillars on the building mostly hidden behind the middle structure seems out of place with the more advanced "mechanical" structures, perhaps indicating its age or reverence within its culture.

I wouldn't go as far as to say that these are examples of Precursor architecture, as we know that a great deal, if not all of it was built with neural physics, which is susceptible to the effects of the Halo Array. However, if it is neither of the former Covenant, Forerunner, or Precursor, I would associate this architectural styling the prehistoric Human civilization. This is not without precedent. Heian, a planet encountered on a covert mission during the Great War, featured derelict cities and structures best described with the styling and abilities of eastern cultures that would more than likely not be present on modern humanity's own colonies.