If the Egyptian pyramids were actually part of a larger structure what purpose would they have served?

Nipples, where smaller planets could nurse.

Probably a tomb

Obviously energy collectors for the massive space ships.

Markers for the tombs of the ancient kings on a 1:1 scale map of the world.

Obstacles to prevent invasion by freakishly huge tanks.

a nose for a really big stone face buried under the desert.

Disco hall/roller rink

Death Star

Skate park

Anchor point for assembly

Landing platforms for spaceships.

They were natural stone formations carved and excavated, long long ago. Then parts collapsed so they're called tombs.

Just a coincidence that several of them contain kings. Can't really explain that part.

Maybe when you call something like a tomb, treasure starts to spawn there randomly.

They were just natural rock formations that people decided to settle around and eventually hollow out to build tombs in.

Star map

They're beacons that when activated shield the town from sandstorms and alien invasion.

Landing pad standoffs

Yeah, that's where I went too. They're big dumb heavy piles. Maybe a dam for a river in a cave with a triangular cross-section?

Crop irrigation engine.

It's a bit of sprue left from where the earth was trimmed from the mold

c'mon

Vogue...

I am 100% serious when I say that they were built for a reason that's much more complex than simple tombs. Electricity generation is the most logical to me but I'm open to ideas. Have heard theories anywhere from it being a magic portal to the pyramids basically being a giant water pump.