For about 3,800 years, the Great Pyramid held the title of world's tallest building. However, in the 14th century, Lincoln Cathedral overtook it.
The present height of the pyramid is 138.8 metres (455 feet), whereas its original height was 146.5 metres (481 feet).
The exact number of people that helped build the pyramids is a matter of much debate, however some have put the figure at 100,000.
All Egyptian pyramids were built on the west bank of the River Nile, which as the site of the setting sun and was associated with the realm of the dead in Egyptian mythology.
The pyramids were originally covered with casing stones made of highly polished white limestone. These stones reflected the sun’s light and made the pyramids shine like a jewel.
On average, each pyramid would have taken 200 years to build, which means there were often not just one but several pyramids being built at the same time.
A wide variety of artefacts, from commonplace household items to priceless jewels, were interred alongside the aristocracy in the pyramids of Ancient Egypt. They thought it would be useful for the deceased in the next life.
The base of the pyramid covers 55,000 m2 (592,000 ft 2) with each side greater than 20,000 m2 (218,000 ft2) in area.
The interior temperature is constant and equals the average temperature of the earth, 20 Degrees Celsius (68 Degrees Fahrenheit).
Approximate weight of the pyramid is 5,955,000 tonnes. An approximation of the mass of the Earth can be obtained by multiplying it by 10^8.
The Temple of Karnak is a vast complex of buildings and temples, which took over 2,000 years to build.
The Great Pyramid of Giza is the largest pyramid ever built, standing at 147 meters (481 feet) tall. It was also the tallest man-made structure in the world for more than 3,800 years.
The pyramids were built as tombs for pharaohs and their consorts, and were believed to protect and preserve their bodies for eternity.The pyramids were aligned with the four cardinal points of the compass, and their shape was meant to symbolize the pharaoh's ascent to the afterlife.
The interiors of the pyramids were filled with elaborate passageways, chambers, and corridors, many of which were booby-trapped to deter tomb robbers.
The pyramids were not built in isolation, but formed part of larger funerary complexes that included temples, causeways, and smaller pyramids for family members and officials.
The casing stones that once covered the exterior of the pyramids were highly polished and gleamed in the sun, making the pyramids visible from great distances.