# The Unfinished Obelisk of Aswan is too large and too precisely worked to be the product of hand tools, and proves a lost or non-human technology

**Verdict: Contradicted.** The Unfinished Obelisk is real and well studied: a colossal granite shaft, roughly 42 metres long and close to 1,090 tonnes if it had been finished, still lying in its quarry at Aswan where masons abandoned it after the stone cracked, most likely a commission of the pharaoh Hatshepsut for Karnak. The claim we rate is different and larger: that its scale and finish are beyond hand tools and therefore prove a forgotten high technology or a non-human hand. That claim is debunked. The quarry preserves the actual method in plain sight (rounded bruising from dolerite pounders, ochre guide-lines, unfinished trenches, and the crack that ended the work), experimental archaeology has reproduced the technique, and no machined surface, tool, or artifact of any advanced technology has ever been found. A hard, slow, ordinary explanation is documented; an extraordinary one is asserted.

Category: Lost History & Ancient Mysteries · Era: New Kingdom Egypt (c. 1479–1458 BC) · First circulated: The site was studied scientifically in the early 1920s by Reginald Engelbach; the lost-technology reading grew out of the ancient-astronaut literature of the 1970s, was sharpened by engineer Christopher Dunn in the 1990s, and reached a mass audience through cable television and online video after 2010 · Believed by: A broad popular audience reached through ancient-mysteries television, YouTube, and books, ranging from ancient-astronaut proponents to lost-civilisation writers and readers who find the sheer scale of the stone hard to reconcile with copper-age tools
URL: https://theconspiratory.com/theory/unfinished-obelisk

## Summary
In the granite quarries on the east bank of the Nile at Aswan lies one of the most instructive objects in Egyptology: a single obelisk, still attached to the bedrock along its underside, that its makers never freed. Had it been finished it would have stood roughly 42 metres tall and weighed close to 1,090 tonnes, nearly a third larger than any obelisk the Egyptians ever raised. Work stopped when fissures opened in the granite, and the shaft was left where it lay, most likely a project of the pharaoh Hatshepsut around 1479 to 1458 BC. Because the object is so vast, a popular claim holds that no hand-tool culture could have shaped it and that it therefore points to a lost or non-human technology, machines, sonic drills, or otherworldly help. This case file keeps two things apart: a partially quarried monument that preserves, uniquely, the exact tools and techniques used on it; and the claim it rates, that its scale proves advanced or alien technology. On the evidence, the fringe claim is debunked.

## The claim
That the Unfinished Obelisk at Aswan is so large, and its worked surfaces so regular, that ordinary Bronze Age hand tools could not have produced it, and that it is therefore evidence of a lost advanced technology (power machinery, sonic or ultrasonic cutting, or some forgotten method) or of non-human intervention, which mainstream Egyptology conceals or ignores.

## Origin and timeline
- c. 1479–1458 BC: During the reign of Hatshepsut, masons begin cutting a single enormous obelisk directly from the granite bedrock of the Aswan quarry, most likely intended for the temple of Amun at Karnak. Planned at roughly 42 metres and nearly 1,090 tonnes, it would have been the largest obelisk ever raised.
- c. 15th century BC: As the perimeter trenches are cut and the shaft is nearly ready to be detached, cracks open through the granite. The flawed stone cannot be used, and the work is abandoned. The obelisk is left half-freed, still joined to the bedrock along its base, together with the tools and guide-marks of the crews.
- Antiquity to modern era: Over the following millennia the site is partly buried by sand and quarry debris. The obelisk survives largely because it was never moved, preserving an unfinished worksite rather than a finished monument.
- 1921–1923: The engineer and Egyptologist Reginald Engelbach clears and studies the obelisk and publishes The Problem of the Obelisks (1923), calculating its dimensions and weight, estimating the workforce, and documenting the dolerite-pounding method from the marks left in the quarry. His study becomes the foundational analysis of how such monuments were made.
- 1970s: As the ancient-astronaut genre popularised by writers such as Erich von Daniken spreads, Egypt's largest stoneworks, including the Aswan quarry, are recast in popular media as feats supposedly beyond ancient capability, seeding the idea that a lost or alien technology was involved.
- 1990s: Experimental archaeology puts the conventional method to the test. Teams including Egyptologist Mark Lehner, stonemason Roger Hopkins, and researcher Denys Stocks quarry and shape granite with dolerite pounders and copper-and-sand abrasion, work filmed at Aswan and in the United States for the PBS series NOVA.
- 1998: Engineer Christopher Dunn argues in The Giza Power Plant and related writing that the obelisk's scale and surfaces indicate machining, pressing the case that the object shows what methods could not have been used rather than what could. The claim becomes a staple of lost-technology commentary.
- 2010s–2020s: Cable television and online video carry the lost-technology and ancient-alien readings to a mass audience, focusing on the quarry's scoop-shaped marks and the obelisk's size. In parallel, a 2023 photogrammetric study measures the actual rate at which dolerite pounders remove granite, refining the quantitative picture of the ancient method.

## The evidence, claim by claim
- Claim: An object this large, close to 1,090 tonnes, simply cannot be produced with copper-age hand tools, so a lost or advanced technology is required.
  Evidence: Scale is a labour problem, not a technology problem. Granite yields to patient abrasion: crews bruised away the rock with hand-held dolerite pounders (a stone tougher than granite), cut the perimeter trenches wide enough to stand in, and dressed surfaces with sand as an abrasive. The method is slow and brutally labour-intensive, but it is documented in the quarry itself and it scales with manpower and time, both of which a pharaonic state commanded. Size shows ambition and organisation; it does not show a hidden machine.
- Claim: The regular, scooped surfaces and precise trenches look machined, beyond what hammering could achieve.
  Evidence: The surfaces record exactly the tool that made them. The quarry floor and the obelisk are covered in the rounded, overlapping bruise-marks that dolerite pounding leaves, not the linear striations of a saw or the helical grooves of a drill. Rows of these scoop-shaped depressions, ochre guide-lines marking where to work, and unfinished separation trenches are visible in situ. Far from hiding a method, the site preserves the method, and the marks match pounding, not machining.
- Claim: No one has ever reproduced this kind of granite work by hand, so the conventional explanation is untested.
  Evidence: It has been reproduced. Experimental archaeologists have quarried and shaped granite using dolerite pounders and copper-and-sand abrasion, work carried out at Aswan and elsewhere and filmed for programmes such as NOVA. A 2023 photogrammetric study went further and measured how fast a dolerite pounder removes granite, putting numbers to the process. The technique is confirmed to work; the honest finding is that it is punishingly slow, which fits an abandoned monument that a large workforce laboured over for a long time.
- Claim: The obelisk was abandoned because the ancient technology failed or was lost, a sign something extraordinary was going on.
  Evidence: The abandonment has a mundane, visible cause: the granite cracked. Fissures run through the shaft, and flawed stone cannot bear an obelisk's stresses once raised, so the crews cut their losses and started elsewhere. This is ordinary quarrying misfortune, and it is the reason the site is so valuable: a finished obelisk tells you nothing about how it was made, while a monument abandoned mid-work freezes the technique in place.
- Claim: Mainstream Egyptology suppresses or ignores the anomaly because it cannot explain the obelisk.
  Evidence: The opposite is true. The Unfinished Obelisk is one of the most discussed objects in Egyptology precisely because it is so revealing, studied in detail since Engelbach's 1923 monograph and central to research on ancient stoneworking. There is no suppression: the tools, marks, guide-lines, and crack are published, photographed, and open to visitors at an officially managed site. A field that built its account of obelisk-making largely on this object is not hiding it.

## Why people believe it
- The raw scale is genuinely staggering. Standing beside a single stone the length of a twelve-storey building, the intuition that hands and stones could not have shaped it is immediate and forceful, and that gut reaction does most of the persuading before any argument is made.
- The surfaces really do look tooled. The rounded scoops and smooth channels resemble, to a modern eye, the work of a machine, and it takes some knowledge of what pounding actually leaves behind to recognise them as the marks of hammering rather than milling.
- The true method is counterintuitive. That you can reduce granite with a slightly harder rock, given enough workers and enough time, is surprising; disbelief in the slow, low-tech answer opens the door to a dramatic high-tech one.
- Television and video reward the extraordinary. Ancient-mysteries programming and viral clips foreground the size and the scoop-marks while omitting the pounders, the guide-lines, and the reproduction experiments, presenting an anomaly with the solution edited out.
- It flatters a bigger story. Fitting the obelisk into a narrative of a lost golden-age technology or ancient visitors turns a hard quarrying job into a cosmic clue, which is far more thrilling than a diligent, well-organised crew with sore arms.

## Open questions
- Exactly how long the full job would have taken, and how many workers were deployed, remains estimated rather than certain; recent rate measurements narrow the range, but the precise labour budget for a monument this size is still debated within conventional bounds.
- How the Egyptians intended to detach the finished shaft cleanly from the bedrock along its underside, and then transport and raise close to 1,090 tonnes, is understood in outline from later successful obelisks but not documented step by step for this specific, never-completed piece.
- How much the ochre guide-lines and layout marks can tell us about the crews' planning and quality control is an active research question, one that concerns the sophistication of the organisation rather than any exotic technology.

## Sources
- Unfinished obelisk, Wikipedia: https://en.wikipedia.org/wiki/Unfinished_obelisk
- The Unfinished Obelisk, Egyptian Ministry of Tourism and Antiquities: https://egymonuments.gov.eg/en/monuments/the-unfinished-obelisk/
- The problems of the obelisk revisited: Photogrammetric measurement of the speed of quarrying granite using dolerite pounders, Journal of Archaeological Science: Reports (ScienceDirect) (2023): https://www.sciencedirect.com/science/article/pii/S2212054823000292
- Claim: Ancient Egyptians Could Not Work Granite Without High-Tech Diamond Tools, Metabunk (2021): https://www.metabunk.org/threads/claim-ancient-egyptians-could-not-work-granite-without-high-tech-diamond-tools.12963/
- A NOVA Crew Strains, and Chants, to Solve the Obelisk Mystery, Smithsonian Magazine (1999): https://www.smithsonianmag.com/history/a-nova-crew-strains-and-chants-to-solve-the-obelisk-mystery-1-46345517/
- Secrets of Lost Empires: Pharaoh's Obelisk, PBS NOVA (1997): https://www.pbs.org/wgbh/nova/lostempires/obelisk/
- Unfinished Obelisk in Aswan is More Than 3,500 Years Old, My Modern Met (2021): https://mymodernmet.com/unfinished-obelisk-aswan-egypt/
- The problem of the obelisks, from a study of the unfinished obelisk at Aswan, Reginald Engelbach (Internet Archive) (1923): https://archive.org/details/problemofobelisk00enge
- The Evidence is Cut in Stone: A Compelling Argument for Lost High Technology in Ancient Egypt, Ancient Origins (2018): https://www.ancient-origins.net/artifacts-ancient-technology/cut-stone-lost-technology-ancient-021545

Rated by The Conspiratory, a neutral, sourced encyclopedia of conspiracy theories. Full page: https://theconspiratory.com/theory/unfinished-obelisk