A landmark discovery on an ancient branch of the River Nile may have solved the mystery of how the pyramids in Egypt were built centuries ago. The now dried-out waterway, which once ran through Giza ...

While the Egyptian pyramids are the most famous, they are not the only ones; in fact, one country has even more.

Beyond their massive size, the Pyramids of Giza reveal astonishing precision—ratios and alignments that continue to puzzle ...