 I was going to bring up that the King's Chamber, maybe looking at the resonant frequency of the King's Chamber, but a little less known is the Temple of Seti. It's known for, it has the mural with the helicopter, the futuristic-looking mural. I had a friend that toured this and paid a lot of money, and he said that they have different frequency chambers, and that it was a hospital where if you want to heal your liver, you'll go to a resonant frequency for your liver hospital.