[cripplecreek]

They’re 95% or more solid rock with very little open space.

I believe it was once common in Egypt to put grain in clay pots buried in the ground or stored in buildings.

[doug from upland]

Yep. If they were for grain they would have been mostly open space.

[Cobra64]

They are 95% or more solid rock with very little open space.

Yup.

When the pyramids were excavated, did anyone find one grain of grain? (See my tag line of 15 years.)

.