Here’s a Look Into the ‘Mysterious’ Osiris Shaft Beneath the Giza Pyramids

Beneath the Pyramids of Giza, there is an entire 'world' waiting to be explored.

Egypt; the land of Pharaohs and Pyramids. The land of Mysteries, the land where myths and legends are part of everyday life.

Traveling to Egypt and seeing some of the monuments that were built thousands of years ago is like traveling back in time.

It’s almost as if for a short glimpse, you can see what Egypt was like thousands of years ago.

That’s why you have to know that there’s more to Egypt than the Pyramids and the Sphinx.

Describing all of the ancient treasures Egypt houses today would be a difficult task.

The entrance to the subterranean chambers. Image Credit: Hidden Inca Tours.

But describing one in particular, which not many people know of is perhaps easier.

Called the Tomb of Osiris or the Osiris Shaft, there’s a massive chamber located beneath the Pyramids of Giza.

Located underneath the stone causeway of Khafre’s Pyramid is a massive three-story chamber, built into the subterranean world below the pyramid.

It is a structure intricately carved with three levels.

And despite the fact we’ve known of its existence for a very long time, the shaft has never been properly explored and studied. That is until now.

Egyptologist Selim Hassan, who wrote the 16-volume Encyclopedia of Ancient Egypt in Arabic and supervised the excavation of many ancient Egyptian tombs under the auspices of Cairo University, was one of the first to explore the Osiris shaft in the 1930s.

The sarcophagus inside level three.
The sarcophagus inside level three.

Despite this, only in 1999 was the structure fully excavated by  Zahi Hawass. Previously, the shaft was filled with water and hundreds of years ago people used to swim inside it.

But by 1999 the water levels retreated making the excavation possible.

Hassan described the shaft in 1933-1934:

“Upon the surface of the causeway, they first built a platform in the shape of a mastaba, using stones taken from the ruins of the covered corridor of the causeway. In the centre of this superstructure, they sank a shaft, which passed through the roof and floor of the subway running under the causeway to a depth of about 9.00 m. At the bottom of this shaft is a rectangular chamber, in the floor of the eastern side of which is another shaft. This descends about 14.00 m. and terminates in a spacious hall surrounded by seven burial-chambers, in each of which is a sarcophagus. Two of these sarcophagi, which are of basalt and are monolithic, are so enormous that at first, we wondered if they contained the bodies of sacred bulls.”

The underground structure is composed of three main levels. The first level was found to be empty.

The second level of the shaft leads the way to a room where six chambers carved out of the stone are located.

Inside these chambers, archeologists discovered pottery sherds, ceramic beads, and ushabtis (small servant figurines).

During exploration of the shaft, it has been reported that basalt sarcophagi were found in Chambers C, D, and G. The sarcophagi in chambers C and G held badly decomposed skeletal remains. The sarcophagi are thought to date back to the 26 dynasty of Egypt.

An overview of the Osiris Shaft.
An overview of the Osiris Shaft.

Then, some 30 meters below the surface, there is a mystery that was described by the Greek historian Herodotus.

The lowest chamber of the Osiris shaft is actually a kind of subterranean hall.

This was recorded by Herodotus in ancient times, but was written off as a myth by modern scholars.

However, it turns out that the Greek historian was right all along.

Inside the subterranean chamber there is a stone sarcophagus perfectly preserved and empty. Near the sarcophagus, archeologists recovered pottery fragments that have been dated back to Egypt’s sixth dynasty.

Based on this and other evidence experts have concluded that the lowest levels of the subterranean chamber date back to the Old Kingdom, more precisely to the Sixth Dynasty (2355-2195 BCE).

According to Hawass, the shaft complex itself is completely uninscribed.

However, as noted by to Hawass, after moving the lid of the sarcophagus, researchers discovered inscribed in the ground the hieroglyphic word “pr”, which means”house.”

It is known that the Giza plateau was once called “pr wsir nb rstaw”, or “the house of Osiris, Lord of Rastaw.”

“Rastaw” is believed to make reference to the underground tunnels, and most likely the name of the plateau reflects the tunnels inside the Osiris Shaft.

The chamber was opened to the public for the first time in 2017.


Created with love for the passionately Curious. was created with two words in mind: Curious and Cosmos. See what we did there? Curious: /ˈkjʊərɪəs/ eager to know or learn something. Something strange; unusual. Cosmos /ˈkɒzmɒs/ the universe seen as a well-ordered whole. A system of thought. You could say that Curiosmos is the Cosmos for the curious reader.
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