Have scientists discovered giant structures beneath the pyramids, including columns extending hundreds of meters into the ground?

The Pyramids were not laid out willy-nilly on the Giza Plateau. Each side of each of the three Pyramids lines up precisely east-west or north-south. It's a bit of a mystery how the ancients ...

It presides over the plateau of Giza, on the outskirts of Cairo, and is the last survivor of the Seven Wonders of the World. Five thousand years ago Giza, situated on the Nile's west bank ...

Each pharaoh who built in Giza did so in accordance with some simple rules that harmoniously ordered the three funerary complexes on the plateau ... of hollowed-out granite held Khufu’s body.