That link has good info on how they were built, and an idea of transport methods.  Great short article with images of another theory.

It doesn't mention the mortar, They can identify what it is, but can't re-create it, or only conclude "It isn't concrete"?  That's different than saying "it's not something that would have been applied in liquid or gel form".  Asphalt isn't concrete, for example..   I doubt it was asphalt, but did they have something to dissolve hte limestone powder, that when dried, left solid limestone bonding limestone to limestone?

You're saying the Pyramids washed ashore from the Mediterranean?

The large one, biggus dickus, which appears to have run in to a woman scorned, could be a useful pedestal for a couple lever bars, as sort of shown in that PDF by TxRabbitBane above.   That paper showed large blocks with a notch cut into the middle to allow a lever to be moved around from 1st-3rd class levers.   That one may be the miniature optimized model, which could also be a crude pulley on the... shaft.   The lever holder keeps the rope from slipping off.

The unusually large skeletons were believed to be sacrificial victims?   That seems... Backwards, unless it was a mutiny of sorts.

Well, now that you mention it, it sort of does seem that these mysterious accidents and omissions could make a questioning sort of person think some things are deliberately being hidden.

Why else would we have so many "official versions" to choose from?  Read those and stay focused on what they disagree on, don't question the big picture.

"Birther" would be hilarious if any odd proof appears.  Though 9/11/01 happened and was a tragedy, there's no doubt planes crashed into buildings, and many people died, members here kept us abreast as bystanders, first responders and worse.

--ETA:   There's more evidence of Jesus and the Bible being correct in many provable aspects than there are about Obama's citizenship.

I don't see how/where they'd house/feed the number of workers to complete all of them in 85 years, unless that's for one, like either of the big ones.

They don't much mention cutting of stones, but copper doesn't excel at it, it bends very easily.  BUT, much of it is limestone, which is easily cut.   We know they found a method where many not in the trades learned those methods quickly, so it wouldn't have been overly difficult.   Needing a 5-10 year apprenticeship in stone working to lend a helping hand would make the first 5-10 years a Total Pain.  Nearly rules slaves out, only those with a vested interest in progress will keep projects moving new new ideas an pure enthusiasm coupled with creativity of a man who feels he's doing something Proper and Right, no stresses.

This method was accurate, fast, and with good results.   A Rare combo, the abrasive cutters used today for rock are favored due to the surface finish left, and near exact size desired.   The archaeologist paper speaking of "Hard Limestone" may be on to a second important piece - Copper in a trench of 'harder' limestone could cut with only many dimples/teeth/etc in the copper to hold the abrasive for a while, like dimples, or even a basic adhesive would be enough, no high temp apply once and waterproof fast cure good beyond the afterlife epoxies we're used to.  More of a simple thing, applied in some clever way - "you put many tiny dents in rod/bar, you sprinkle with this powder, you set it over there, and it will be ready by the time the others are used up"

Could be used with tuning forks vibrating the bar/rod/etc of the right shape to resonate with the available resonators on hand.  That might be a level of aptitude a bit higher than dent/stick/repeat dude.  I honestly buy into the tuning fork theory based on the fact that they wouldn't draw them in detail in several places if they represented something banal, like how they moved the rocks.

Also refresh on these "Whacky ideas"

Da Vincii  And then down the list, from Newton to Leibniz to Nokla Tesla to Edison (more of the Newton of the 19th/20th centuries, collected many works, then published them)   Still the collections show MANY "Dead Ends", such as the vertical screw helicopter from DaVinci, well, that's not trues, the rotors on heicopters do trace out a stacked spiral looking like screw threads in time laps, maybe that was DaVinci's way of making time lapse drawings?

The idea is, look at some of the ideas that fell by the wayside, due to being 'too advanced and confusing" to "Didn't have marketing" or "Was a better mousetrap/solution to a problem already solved".   That last one is what I look for a lot.   For two reasons - Alternate ways of doing things perhaps better now due to tech advancement, and B (Big One for me) is the implication that there's Only One solution to any problem.   When that wasn't a school of thought, we accomplished many great things, to the point that only the successful ones are even heard about.  Pyrex and Teflon are two of them.  Dow Corning had invented them in the decades prior and couldn't see how it could possibly be useful, until space program came along..  Now they're household names.  There's probably a few youtube channels that cover "inventions lost to history" or similar title in one or many titles that could give insight, I find every one I see and catalog it for bringing up if somebody asks me if I've ever heard of it, but I don't remember the links, or titles, or who they are from.  I really need Fezzick to jog my memory once in a while.

How many more discoveries do we have, as a species that we won't know about because it's not commercially viable currently, or the right question hasn't been asked.

Then there's Egypt, where there isn't a complete 'solution'.   The "Solution" to the pyramids, ancient Egypt/other ancient people around the world are as solid as global warmingclimate changeComing Ice Age were, all were generally tax schemes.

There are some burial mounds here, about a mile away from me, wrapped in a Golf Course for Safe Keeping.   Under the large, out of place piles of dirt are stones, and well, 30 ft mounds.  The way to close them to public is to make them the harder holes on the private golf course, I guess.

Then again, go anywhere near a long established river here and you'll see more, just so eroded they aren't easily picked out from  just another bump in a bluff since rivers change course so much.

You only hear about them if that land is useful for something else.   Then they are "living history", "heritage", etc.  While most people will look at the area nd not see this " living history".   Sort of like the pipeline under the river in ND that had all the protestors, in addition to the pipeline across purchased private land.   It's ALL 'heritage', but you can rent it, just can't use it for free, even if you own it.   They've been trying that with most all of the Black Hills as well, though some 1800s treaty already had them give it entirely to the US except for some small spots.  Gotta keep taking it to court until they win.    Should go back to try-appeal, walk away, rather than try again every 5-10 years until you win, and then not allow the other side to appeal.   This reminds me of another group, I wonder who learned from whom?

I can see that local 'dirt' fro the limestone quarry area could be used as filler, except for the interior tunnels, then bec appsed wiht a layer of limestone.

Loose Gravel has an Adipose/resting angle of 50° So if a pile of it was simply poured out, the angle on the edges of the pile to ground are 50° from horizontal/40° from vertical.

If they built the pyramids as a spiral, a chain of people carrying buckets of crushed limestone, then dumping it, while stone masons sat limestone around the edge to contain it at a slightly steeper angle from the extra friction (51° to 53° are the actual numbers for the large pyramids), it would be WAY faster and easier to make a spiral ramp up, as the elevation increased, the stone masons would increase the tunnel's progress, make sure it's angled correctly, etc.  Would make it easy to make a perfectly straight line by looking down tunnel to a light, and keeping it centered with the walls aligned, then using 2-3 rows of limestone around those tunnels to 'lock' it permanently assisted by the weight that will be added atop it.

Casing stones are exact same story as internal tunnels and traps, eye down to keep it level with extra input from people on the ground before next course of gravel is dumped for new limestone placement to keep the Look correct.   One line carrying stone, another bucket brigade gathering loose larger sized gravel to be compacted down during the rest of construction.  This would leave one small area that would need climbing, and only needing to place stones even with the neighbors, then dump the gravel in from top, run around in little circles packing it down (people HAD worked extensively with dirt structures, if history is believed at all, (and if not history, common sense would say they'd noticed certain properties of different 'types of dirt' due to living in it for several hundred years, enough to have time to worry about sacrifices instead of merely survival).  If done that way, the lat bit would be smooth with rope and tackle tug/slides along the blocks already laid, and a bucket brigade of a few dozen people, 2-3 on each course of stone with a rope, to pull the next bucket o gravel up, and put it on the ropes for the guys above it to life higher, repeat.

That said, that's the ONLY way I can picture a ramp being used.   They wouldn't have been wasteful like our current construction, temporary mega structures built to help build something else, then entirely dismantled, Nope, that's just faster for us, not the most direct method.   Building ramps leading up the pyramid would be more of a task than building the pyramids themselves. looking at volume and run size desired, a 15° slope starting at zero leading to the top, say 40 ft wide (conservative) Plus the extra dirt due to the friction angle/adipose angle of whatever they need the rock fromo (half again as much), leads to more than moved for two entire pyramids once adding in the rebuilding of ramps to "point" to different endpoints.

I like this idea as it explains a few things - easy way to fill center of pyramid, most efficient use of limestone blocks in both function and lifetime durability, Ramp doesn't need to be removed later, the Ramp IS the pyramid, and last, but not least:  Moving big buckets of large, dens packing gravel (crushed limestone, anything not rounded by a river) would be far easier, faster, and efficient to carry by hand and using ropes.   The casing blocks could be dragged up the slope resting on 2 'point bearings, the two steps below each stone.   That might explain their very uniform sizes - just long enough to span 2 points of existing courses, yet small enough to fit up the ramp opening remaining, while keeping it light enough to move freely.   Limestone has  Moh's hardness of 3.  Raw copper is also hardness of 3, but can be bumped to 4 or 4.5 simply by work hardening (making a bunch of little dimples in it, causing stretching and bending in amounts small enough to move the metal, but not go past yield strength, these dimples would also hold grains of limestone (calcite), which could easily grind through itself.   Even having a medium heavy copper saw 3-4 ft tall would allow them to quarry a limestone brick out by dropping it in one end, helpers keep it vertical, and 1 or more guys pull on rope attached to blade to abrade the rock.   - Straight edge, consistent thickness due to size of copper 'blade', and many doing htis at same time.  Copper would be enough to get a cut starte,d and the cuttings from it would catch in the work hardened copper and make the abrasion  faster.

If anybody would like to buy me a piece of half hard copper, say.. 8' x 5' and 3/8" thick, I'll happily do the experiment.  

--ETA:  I'd be OK with welding together 16 6" wide, 6 ft long bars of half hard to perform the experiment, for anybody wanting to help in interest of Science.