Top 10 Unexplained Mysterious Structures On The Earth
8. Great Pyramid of Giza, Egypt
The Great Pyramid of Giza stands on the northern edge of the Giza Plateau, located about 10 miles west of Cairo. It is composed of over 2 ½ million blocks of limestone, which weigh from 2 to 70 tons each.
It’s base covers over 13 acres and its volume is around 90,000,000 cubic feet. It is 454 feet high which is equivalent to a modern 48-story building. The joints between adjacent blocks fit together with optical precision and less than a fiftieth of an inch separates the blocks. The cement that was used is extremely fine and strong and defies chemical analysis.
Today, with all our modern science and engineering, we would not be able to build a Great Pyramid of Giza. The Great Pyramid is thought to have been erected around 2600 BC during the reign of Khufu. It is one of the greatest mysteries of all time. Some of the more interesting research consists in searching for undiscovered chambers and passages using high tech equipment. What may be discovered is an exciting thought.