Lots Of Rocks
The pyramids were built with a lot of rocks, as everybody can see, but this truth will still blow your mind. The three great pyramids of Giza hold enough stones to build a ten-foot wall around France!
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Towering Achievement
When it was finished in 2560 B.C., the Great Pyramid stood 481 feet tall, making it the largest man-made structure on the earth. The Lincoln Cathedral was built on top of it in 1311, and it has remained like way for thousands of years.