In our second swapcast in the series with Ben from UnchartedX, we are joined by Chuck, host of the excellent YouTube channel cf-apps7865. The four of us spend a couple of hours watching Ben's footage inside and around the "second great pyramid" at Giza, also known as the Pyramid of Khafre.    There are lots of fascinating details about this structure, which doesn't receive nearly as much attention as its nearby companion, the Great Pyramid. Ben shows us the tunnels beneath it, the chambers in the bedrock below it, the enormous amount of work the builders went through to cut a flat area from the bedrock in which to build it, and the line of granite rubble that surrounds the bottom of it, all that is left of the granite casing stones that used to cover the first few courses of core masonry.   We also look at some other interesting features of the Giza plateau related to this pyramid, such as the Sphinx Causeway, the Valley Temple, and the megalithic "tile" stones that were used to make a flat surface around the pyramids.