The Construction of the Giza Sphinx: Carved from a Monolithic Rock

The most important sentence about this structure is: It was not built. It was exposed.

At the nearby pyramids, stone was quarried, transported, and stacked. With the Sphinx, the opposite happened. Workers dug a deep trench into the bedrock, leaving a block standing in the middle. They carved the figure out of this block. This is not masonry, but sculpture on the scale of an apartment building: 73 meters long from paw to tail, 20 meters high, and 19 meters wide at the hindquarters.

This difference explains almost everything notable about the Sphinx. It explains why it sits in a pit rather than standing on a surface. It explains why its body crumbles in some places while the adjacent head remains sharply defined. And it explains why the figure is not perfectly symmetrical: When working from existing bedrock, you must take what is there.

However, the pit has a downside. It fills up. Desert wind blows sand into it, where it accumulates and buries the figure if no one removes it, which has happened repeatedly over millennia. For the vast majority of its existence, the figure was buried up to its neck in sand. It was not until the 1920s that it was fully and permanently exposed.

This sounds like damage, but it was actually salvation. As long as the body lay buried in sand, it was protected from wind, sand abrasion, and temperature fluctuations. The head, which protruded for thousands of years, suffered accordingly more wear. That it still looks better than the torso is due to something else, discussed below.

A rarely mentioned consequence, yet the most interesting one, is this: A masonry structure can be dismantled and reused elsewhere, which is exactly what happened to the pyramids over centuries. A figure cut from underground cannot be dismantled. The Sphinx survived because it offered no usable building material.

Three Rock Layers Explain the Condition

The rock from which the figure is made is not uniform, and this lies at the heart of its condition.

Excavation research distinguishes three rock sections of the Sphinx. At the bottom lies the first: hard, brittle rock of a fossilized reef. It forms the base and paws and is several meters thick at the hindquarters, but only just over a meter thick at the paws. Above this follows the second section, which makes up practically the entire body. It is divided into seven beds that alternate between softer and harder from bottom to top. The third section forms the neck and head. It is softer at the neck and significantly harder at the head.

This explains the most striking finding. The body weathers in waves: the softer beds recede, the harder ones remain standing, creating the ribbed profile visible in every photo. The head, by contrast, sits in denser material and has therefore retained facial features that are four and a half thousand years old.

This must be distinguished from what was added later. Masonry is now attached to the paws, flanks, and base, partly ancient, partly modern. Already in the New Kingdom, facing blocks were added to support the crumbling torso, followed by several campaigns in modern times. One campaign in the 1980s had to be dismantled because the mortar used damaged the original rock. Therefore, when viewing the lower half today, one sees repair work rather than original material to a considerable extent.

Thus, it is not a matter of treatment, but of the rock beds. Measurements on these limestones show significant differences in density, porosity, and salt sensitivity between adjacent layers. The sculptor had no influence on this. He worked with the rock that stood at that location.

Where the Excavated Stone Went

Where did all the stone removed from the trench go? This question leads to the finding that supports the dating.

Immediately east of the Sphinx stands a temple made of massive limestone blocks, some weighing several dozen tons. Between 1979 and 1983, an excavation team mapped the Sphinx stone by stone and compared the stratification in the temple blocks with the beds in the figure's body. The result: The blocks fit. Core blocks of the temple correspond to specific layers from the Sphinx's torso.

The finding becomes even sharper through distribution. Blocks from the lower chest layers are predominantly found in the temple walls, while blocks from the upper chest layers accumulate at the front of the temple. This corresponds exactly to the order in which a quarry works downward. The temple was thus built from the spoil generated while the figure was created.

With this, the Sphinx and the temple form a single operation. The sculptor and the mason worked on the same material, just in reverse directions: What one removed, the other reassembled fifty meters further east.

The scale of these blocks deserves a moment's thought. These are not convenient ashlar stones, but monoliths weighing dozens of tons, some even more. However, they only needed to be moved a few dozen meters, from the edge of the pit to the construction site in front, downhill. This is the easiest transport task possible, explaining why such large block sizes could be used here, which would never have been chosen for longer distances.

Incidentally, the temple was never finished. This also fits the picture of a project that ended due to a deadline.

Who Commissioned the Sphinx?

The attribution to a patron is largely clarified, though not proven.

The temple in front of the Sphinx and the Valley Temple of the middle pyramid lie next to each other, share a building axis, and belong to the same construction phase. This phase belongs to the pyramid complex of Khafre. Since the Sphinx temple consists of the spoil from the figure, the figure is linked to the same chain. The excavation director phrases it cautiously: The evidence for Khafre is stronger, but not absolute proof.

There is a serious counter-consideration. Some experts consider it possible that work began under Khufu or that another family member is behind it. Arguments include a quarry edge north of the figure, which might fit an older transport route, and crew names containing the word 'Lion' found at a harbor site from Khufu's time. This is an indication, not proof, and is treated as such even by its proponents.

A third clue leads to the stele that a later king erected between the paws a thousand years afterward. In its damaged text, 19th-century researchers believed to recognize a syllable of Khafre's name, which long served as evidence. The relevant spot is now lost, and what was written there can no longer be verified. It therefore no longer serves as an argument, either for or against the attribution.

For practical purposes, this means: The usual dating around 2500 BC is well-founded and supported by the scientific community. It rests on a chain of circumstantial evidence, not on an inscription. No construction inscription of the Sphinx exists.

Why Was the Sphinx Built?

Why was the Giza Sphinx built? There is no recorded answer, but a well-founded interpretation.

The figure combines a lion's body with a human king's head, identifiable by the headdress and the attachment point of a beard. In Egyptian thought, the lion stands for vigilance and protection, while the king's head represents the person exercising that protection. Together, they form a guardian who is not abstract, but a specific individual.

Crucially is the orientation. The figure looks exactly east, toward where the sun rises. It lies at the end of the causeway leading down from the middle pyramid, immediately next to the temple at the ancient harbor. Anyone coming from the valley up to the pyramid complex passed it. It stands at the threshold between the land of the living by the river and the city of the dead on the rocky ridge.

Later, a second meaning was added. In the New Kingdom, more than a thousand years after its creation, the figure was already largely buried in sand and was worshipped as a deity. From this period comes the stele between the paws, on which a later king recorded having the sand removed. By then, the Sphinx was already a monument from a distant past, as remote to them as the Roman era is to us.

Even the name reveals something about its function. The word 'Sphinx' is Greek and comes from a completely different mythological context. The Egyptians of the New Kingdom called the figure Hor-em-akhet, translated roughly as Horus on the Horizon, linking it to the sun god at the place of his rising. What it was called during the construction period is not recorded. The common name is therefore an exonym assigned roughly two thousand years after its creation.

What it meant to its builders remains a reconstruction. What it meant to later Egyptians, however, is documented in writing.

Frequently asked questions

When was the Giza Sphinx built?

According to the usual dating around 2500 BC, in the 4th Dynasty. The attribution is based on the construction sequence with the temple in front, not on an inscription.

Who built the Giza Sphinx?

Most likely Khafre, the patron of the middle pyramid. Earlier involvement by his father is discussed but not proven.

How old is the Giza Sphinx?

Around 4,500 years. The theory of an age of 9,000 years or more is not shared by the scientific community.

Was it built from blocks?

No, it was carved out of the bedrock. Only later repairs to the paws and base are masonry.

Why is the body less well preserved than the head?

Because the body and head consist of different rock sections. The head sits in denser, more resistant material.