Observations of note:
1. Dark tallish structures on the sides of the "walls" have figures (humanoid, alien) etched or carved into the little alcove at the base.
2. There are what I presume to be "power units" or something in each grouping of metallic obelisk rows and columns (field?). These units will lightup when approached and on one side you can see three vertical symbols or something being displayed (changing). They are made up of small triangles.
3. Some of the relics look like they might fit into the little alcoves mentioned in #1, and a few other places.
4. The star in the system is always overhead.
5. The pattern of the site from above, IMO, resembles a star and planet. Perhaps it is a map of some sort. Or a clue to another location.
that's all I have for now. Great find.