One of the ancient seven wonders of the world and the only surviving one, The Great Pyramid of Giza has been a subject of mystery for centuries. It is located in Egypt and is a major attraction site for many tourists around the world.

In his book Pyramid Odyssey, Paranormal author William Fix detailed the various interesting ways in which man has perceived the Great Pyramid over the years. Here is what he wrote:

“…men are capable of perceiving the Pyramid in an astonishing number of ways. Some have thought the Pyramid was an astronomic and astrological observatory. Some have thought it functioned as the equivalent of a theodolite for surveyors in ancient times… Some think it performed as a giant sundial… Some think it records the mathematics and science of a civilization which vanished… Some think it is a huge water pump. Others have thought it was filled with fabulous treasures… One early investigator came away convinced it was the remains of a huge volcano. Another thought the pyramids were Joseph’s granaries. Some thought they were heathen idols which should be destroyed. Some believe the Pyramid captures powerful cosmic energies… Some think it is a tomb. Some think it is a Bible in stone with prophecies built into the scheme of its internal passages… Some think it was a mammoth public works project which consolidated the position of the pharaoh and the unity of the nation. Some think it was built by beings from outer space. Some say it was a temple of initiation. Some hold that it was an instrument of science. Some believe it is an altar of Guild built through direct Divine Revelation. And today, judging by the uses to which it has been put, some apparently think it is an outhouse.”

Like the ones listed above, people have brought up several theories about the Great pyramid. Nevertheless, Archaeologist have gathered concrete facts which we can alway rely on.

Here are 10 intriguing facts about the great pyramid of Giza

1. The Great pyramid of Giza stands at 481 feet above the ground. Experts say it was the tallest structure in the world for almost 4,000 years. Today, it has decreased in height due to erosion.

2. The mortar used in constructing the pyramid is of an unknown origin. It can’t be reproduced and is so strong that it still keeps the Pyramid in place till this day.

3. The Great Pyramid of Giza was once covered with a casing stone made of glimmering limestones. These stones were so shiny that they reflected the sun’s light and made the pyramid glow. The reflected light is alleged to have been so bright that it could be seen on earth from the moon.

4. The base of the pyramid is a perfect square and each side of the square measures 765 feet.

5. The temperature inside the pyramid is a constant 20 C despite the scorching heat that is typical in Egypt.

6. The Great Pyramid contains three burial chambers. One of the chambers belonged to King Khufu, the pharaoh who is thought to have commissioned the construction of the pyramid.

7. Archaeologists believe it took about 23 years to build the Great Pyramid.

8. They also suggests that over 100,000 people participated in the construction of the pyramid due to the two million massive stone blocks that make up its structure.

9. The ancient Egyptians built all the pyramids in Egypt at the bank of the River Nile because that’s where the sun sets every evening, signifying the realm of the dead.

10. The pyramid originally had a swivel door at its entrance which could be easily pushed open form the inside but was almost undetectable from the outside.

What other interesting fact do you know about the Great Pyramid of Giza? Tell us in the comment section below.