Long lost photos of 'Egypt's Area 51' reveal secret underground complex that's been hidden for decades

One of Egypt's most mysterious sites has been revealed after long lost photos were recovered, with a secret underground bunker many compare to Area 51 being hidden from the public by the military for decades.

While we've managed to learn so much about the history of ancient Egypt and it's marvellous pyramids over the years, there remains so much about the country's iconic past that we either are still in the process of finding out, or are yet to discover.

Only recently did archaeologists manage to reframe previous understandings of how the pyramids' giant blocks were moved in a jaw-dropping find, and there remains a myriad of questions surrounding the site that many refer to as 'Egypt's Area 51'.

The site, located around three miles from the famous Pyramids of Giza, is known as Zawyet El Aryan, and was first discovered in an excavation by archaeologist Alessandro Barsanti back in the early 1900s.

Zawyet El Aryan is referred to by some as Egypt's Area 51, and could have cosmic links (Alessandro Barsanti)

As reported by the Daily Mail, the site comprises a massive T-shaped pit that has been carved into the solid limestone underneath, and is around 100 feet deep into the Earth below.

One key aspect of the site's mystery is a strange oval vat that Barsanti found in one of the chambers. It had a filled granite lid, and apparently contained traces of an unknown substance according to the archaeologist. Unfortunately, it has since been lost, with no trace of its existence in the decades following.

Many speculate that it was originally intended to be the base of a new pyramid, joining the famous collection just a few miles away, yet there was no superstructure ever built above for whatever reason.

However, it does seeming posses a potential cosmic connection though that has caused many to liken the area to Area 51, with a strange line of text found on one of the walls that could perhaps link to aliens.

The graffiti appeared to inscribe 'Seba-[unknown]-Ka' onto the wall in red and black ink, with experts loosely translating this to words that include 'star', 'vital essence', or 'life force', although the full meaning isn't able to be understood.

Writing on the wall of the ancient site leaves some believing that it was intended as a 'gateway to the stars' (Alexandre Moret)

Some even believe that the ancient Egyptians meant this to mean a 'gateway to the stars', which would perhaps suggest that they wanted to connect with extraterrestrial or cosmic beings, potentially through the dead.

Others simply believe that it was the name of one of the builders that created this site though, yet there's no way of knowing for sure either way.

Unfortunately, the military took over the site in the 1960s, closing it off to everyone apart from authorized individuals, and have remained in control of the location ever since.

This makes further investigation into the area incredibly difficult, and all researchers have left to look over are the photos that have now emerged from Barsanti's original excavation over 100 years ago.