Apparently, the quietest place on earth is an anechoic chamber at Orfield Laboratories in Minnesota.
The loudest, is any Dave and Buster's on the planet.
Quotes i've read about the Orfield chamber scream, "(It) will drive you insane...!", "No one can last longer than 45 minutes!", etc, etc. The human fear of silence made tangibly real.
Since artificial lights make noise, it is necessary to be in total darkness while in this sound proof room. In essence, it is a large sense deprivation chamber, so there is a possibility of experiencing panic, hallucinations and imaginings of all kinds while inside it.
I really want to go there. I wonder how much it costs to rent some time....?