And it is an overlapping geometric series of chambers that is so obviously acoustically tuned that if you actually wanted to search hypergeum acoustics, it will come up with studies where they've noticed that this is absolutely a deliberately acoustically tuned complex. Go on the actual website, not images.

Specifically, because of the fact that this place absolutely is acoustically tuned to resonate between 110 and 115 Hertz, which is the bandwidth to activate certain brain states like alpha and theta brain, where you can get into more meditative states of consciousness.