The Great Pyramid

There's been more research done on the great pyramid in fact there seems to be indication of a whole other series of chambers in there that we haven't discovered yet. The last couple times have been down into the both the queen's chamber and the subterranean chamber which are normally off limits to tourists until you get a special permissionyou can go in there. They've they've been doing these muon detection experiments for a couple of years now so you're looking at cosmic ray particles and there's a slight difference when they go through a material versus through a void. By detecting this and analyzing and compiling this data over years they've kind of determined that there are a couple of large voids