It is located in the United States of America at Orfield Laboratories
Its calm may turn into a bit of madness, and it recorded a place in the Guinness Book of Records as the quietest place in the world.
This room is able to mute any sound by 99.99%, and the person responsible for its design confirmed that no person can stay in this room for more than 45 minutes, or else he will suffer from a kind of hallucination and terror.
Sound insulation with this high percentage makes your body the only source of sound and you will start hearing your internal organs and your heartbeat as loud as you have never heard it before..
To resist the feeling of fear and hallucinations, you have to be sitting in a chair, otherwise you will lose your balance as well.
