The Pyramids of Giza are an architectural marvel of great magnificence. Their monumental size and complex construction have earned them a place among the seven wonders of the ancient world.

Tourists up until this day continue to visit these unearthly structures. Even though other pyramids were raised, none have the same quality, grandeur, or durability.

Here are 5 things that you never knew about the Pyramids of Giza:

## 1. The Great Pyramid of Giza is the oldest of the Seven Wonders of the Ancient World

Not only is it a Wonder of the Ancient World, it's also thousands of years old and the only one still in existence.

## 2. The Great Pyramid is the most accurately aligned structure in existence and faces all four cardinal points of the compass

"Khufu’s pyramid is perhaps the most colossal single building ever erected on the planet. Its sides rise at an angle of 51°52′ and are accurately oriented to the four cardinal points of the compass." - Britannica.com

## 3. The pyramids were originally covered with limestone casing that reflected sunlight and made the pyramids shine like a jewel

These casings were said to make the pyramids shine so bright when the sun hit them that they made the structure sparkle like a jewel.

## 4. The interior temperature of the pyramids is constant at 20 degrees Celsius, which equals the average temperature of the earth

No matter how hot it may get outside, temperatures inside the pyramids remain at a constant 20 degrees Celsius.

## 5. The ratio of the Great Pyramid of Giza's base to the height is close to the Golden ratio

Such mathematical details accompanied by architectural precision makes us wonder if anything about the pyramids was unplanned.

According to Live Science, "Historically, the number can be seen in the architecture of many ancient creations, like the Great Pyramids and the Parthenon. In the Great Pyramid of Giza, the length of each side of the base is 756 feet with a height of 481 feet. The ratio of the base to the height is roughly 1.5717, which is close to the Golden ratio."