The Great Pyramid of Giza is the only surviving wonder of the Seven Wonders of the ancient world. Still standing since around 2500 BCE with the pyramids of Khafre and Menkaura and the Great Sphinx of Giza, it is still ancient and still a wonder. The tallest human-made structure in the world for more than 3,800 years, the Great Pyramid was built with an estimated 2.3 million large blocks of stone weighing 6 million tons in total. One of the many ‘wonders’ people wonder about to this day about the last Great Wonder is, “I wonder how they moved all those two-ton stones from the Nile River to the site 5 miles (8 km) away?” Well, we may have moved away from wonder and a little closer to fact recently as a new study using sediment cores taken from deep holes around the Giza site found evidence that they may have been floated on a river, a tributary of the Nile, that began drying up soon after the construction was finished and disappeared completely around 600 BCE. Has one part of the mystery of the construction of the Great Pyramid of Giza finally been solved?