The Great Pyramid of Giza was built about 4,500 years ago, and at 481 feet high it was the tallest structure on earth for over four millenia.The Great Pyramid is 756 feet long on each of its three ...

Engineers might have cracked the code for how the ancient Egyptians built their first pyramids. A new study suggests that water power, not just brute force, helped construct the iconic Step Pyramid of ...