[Classified Project]

I wonder if they'll be different head statues in them..it be great to see some different murals for sure. 

I believe the other pyramids housed eggs and other experiments. I also believe the the art on the walls shows what it can do as far as what room contains which experiments.

Case in point the black Goo was a reagent that could transform all life into hostel organisms. Just like that thing the Engineer is hold up in the artwork in the chamber.

Most importantly, I want to know what the Green crystaled "tomb" underneath the giant Xenomorph carving/mural represents/is. Is that the key to EACH installation? Would be fantastic if they all were something completely different.

My theory is along the lines of BULL ALIEN's above. I believe that the work that the Engineers were doing on LV 223 was all about experiments geared towards developing "perfection" whether it be in a Bio-weapon, Bio-enhancement, or otherwise. Case in point, the Engineers themselves looked like they had gene therapy done to bring their bodies to the point of being "superior beings"

I believe those other pyramids hold experiments in different forms and attempts at that achieving perfection. The Black goo agent may hold the key (The greenish substance may also play a role). The Engineers may have the ability to manage its characteristics based of a host of unknown (to us) variables. They manipulate these variables to work each of their experiments to a "perfection" stage. As stated before by several others, the murals tell the story of each experiment.

I really like that theory! Definitely the green crystal is a massively overlooked detail. The tomb must contain something, an Alien being from which they harvest its genetic material to create these enhancements.

I theorize that all Engineer pyramids upon LV-223's surface are actually ships.

They contain tombs, ampules and murals in the hopes that if the Engineer race is completely wiped out, their history can still be preserved within massive launchable structures. 

[The Juggernaut class of ships are only flown in warfare]

I theorize that each pyramid on LV-223 is actually a separate stage of their "assembly line" where by they extract the DNA of the Alien to be used as enhancement and weapons. I theorize that the pyramid the Prometheus explored was actually the final stop for their work and where most of the sensitive tampering took place. The Pyramids behind it each were used for different parts of the extraction process. 

Example Pyramid 1 could contain live specimens of the Alien, while pyramid 2 could be a testing facility to separate the weak from the strong. Pyramid 3 could be used to adapt and test on these Aliens for the next stage which would be killing them and extracting their dna. From there the DNA is manufactured into the substance we know as Black Goo and from there its sent to the final pyramid for analysis and storage.

Maybe the head room is point of origin of the goo.

high priest blesses the ampules before they are dispatched?

the huge head sculpture and mural behind the head suggests maybe that the chamber is like a chapel of some sort?

the ghostly engineers were being chased by what was probably a ultramorph as you can hear its scream in the audio.

I think the pile of engineer bodies were used as test subjects or were exposed while researching and creating, maybe the green crystal could reverse the contagion, thats why they high tailed it back to the head room? its only speculation.

All those piled up bodies are the engineers from the other pyramids?

I look at these pyramids as different units of a small settlement or city. If you work on a seriuos project, you need different facilities with different functions:

A pyramid for food producing, storing, transport, etc.

A pyramid for a hospital, laboratories, drug store, etc.

A pyramid for the HQ, communication, space travel control, etc.

A pyramid for the experiments and scientists, etc...

so many questions. Wonder if more engineer bodies could be piled up in the other pyramids. Also the first pyramid has them all on that wall...if they were cornered,  were they trying to climb over wall or enter?..could that wall be a room to multiple cargo ships, and thats why so many were dressed in elephant engi masks?  idk..

My theory is that each pyramid is a test site that hold shards and chunks in various sizes of the green mineral that may have originated from a meteor that hit the surface of LV-223, or was extracted from natural formations in caves. 

When brought to the temples, the minerals are extensively experimented with, which eventually results in a black substance not even the Engineers can control and fully understand, thus they are sealed away deep within each temple.

The intention of the experiments is to create biological weapons and even engineer creatures such as the ones proudly being presented on the murals. The Engineers on LV-223 believe that they are gods now.

Ironically one test go awry and the black goo is unleashed on the Engineers and they are killed by one or several unintentional bioengineered monsters chasing and killing them. Few Engineers were suspended in cryosleep throughout the whole time and did not witness the chaos that unfolded within their temples. Had they been aware, they'd probably escape the planet.

Maybe the Engineers on LV-223 were renegades that were warned by their elders on their home planet about the green crystals being an evil energy that should be left untouched.

Anyway this is all just my theories.

In Spaihts’ original script I believe it was meant to be 24 facilities/pyramids on LV-223 (although it was LV-426 in the script). In the end of Prometheus we can see Shaw driving to the nearest facility. There is a straight road connecting them. There they find the other juggernaut and sets off to find the home world of the engineers. Presumably, all the facilities on the moon encountered the same fate as the one explored by the crew of Prometheus? Were they also full of dead engineers? Perhaps some of them contained facehuggers (like in Spaihts’ script)? Perhaps they used humans (abducted from earth like the UFO-case - Betty and Barney Hill) to experiment on? Did the outbreak spread from one facility to the next until the engineers on all the facilities were dead? Wouldn’t they have time to get away - to leave the moon? Perhaps one did and crash landed on LV-426 . . .

"We are looking for short, concise, but also well explained theories."

Counts me out then lol

I would think in a Nut Shell, the other Temples housed other Experiments...  i would assume this place LV-223 was a like Laboratory they experimented with Life they was evolving before they seeded it back to Worlds.

The Engineers are Galactic Genetic Gardeners and Earth was just a Garden or Patch....   so as a Gardener would grow different Crop/Harvest or Fruit and then maybe want to experiment with certain kinds to upgrade them.

They would maybe take samples and experiment on them, and when they have created the desired results, they then re-seed them back to the Garden.

So LV-223 is basically a Greenhouse/Nursery as they wont want to experiment in the Garden in case the results are wrong and effect the other Fruit/Crops..

THIS.... is why the Outpost supported Human Life, when Engineers clearly could survive on the outside surface.

So based on the above.....

Maybe Each Temple was for experimenting and evolving different Organisms?  On Earth?  Or maybe each one is designated to a different World the Engineers had seeded life on.

Ridley Scott had proposed that the Engineers seed life across the Galaxy and so Earth does not have to be the only place with such life.

Fire and Stone Comics touched upon this where the Predator Comics started with the Predator Hunting a Humanoid type being that had 4 Arms much like the Mortal Kombat Games Goro who was a Race called Shokan

The Predator came across a Cave Star Map very similar to the Earth one, only the beings worshiping the Giants had 4 Arms and not TWO.

They had to collaborate with Fox and Ridley with Fire and Stone and so its safe to assume while this 4 Armed Race may not be Canon, i think its Safe to Assume the Engineers may have left Star Maps to many other Worlds they had been involved with.

But maybe something changed.....

We know it did with Earth and maybe they then used that Outpost to create something else to replace us with, they found a Creation whos DNA was more favored than the Engineers own and maybe chose to Seed this on Earth to replace us?

THESE THEORIES... have a Hole!

It would make it even more Blind Pot Luck that the Prometheus arrived at that Cave system? or maybe its not a Hole?

The other thing we can look at was that Spaights draft there was supposed to be 8 different kinds of XENO related Organisms they had created. 

Ridley then commented after that the Derelict had 8 different Cargo Holds each with a different variant.

This would be the most simple explanation for the different Temple Mounds.

@Chris and Neomorph

I like those theories ;)

@BULL ALIEN and suwhited

Certainly plausible and i think indeed what Chris was on about to, seems some nice theories on the same page

I think the green crystal harnesses some form of life giving energy, the goo may be inert until it is activated by the green crystal.

the orrey controls have a green stream of energy that the engineer directs by waving his hand over and there is green glowing specks in the goo mucous that david sniffs and stretches between his fingers.

As commented above each pyramid would have a head room with green crystal and mural.

Each side of the crucified xeno, there is what looks like a facehugged engineer so i think each pyramid crew would be working on different projects but to achieve the same result.

@BigDave, i was pondering that also last night, that each juggernaut crew is assigned overseer of a world that they create.

The Starmap in the orrey makes it look that way.

and maybe when a planets civilisation goes off the rails their superiors(high priests and royalty of their species as portrayed in the opening sequence the cut part) sends them out with all the materials necessary to cleanse that planet but in a gruesome way, just my speculation.

Perhaps we shouldn’t make too much of the green crystal since it was originally a sacrificial cup (for the mutagen probably)? I think maybe they should have stuck with that idea since it fits better with the sacrificial engineer in the beginning of the movie, with all the ampules with black goo in the room, the mural showing The Beast and sacrificed humanoids. The ones sacrificed could have been humans abducted from Earth throughout millennia (which would fit in nicely with the mythos of UFOs and abductions to Zeta Reticuli)?