The Quietest Place on Earth, Minnesota
Your thin walls will never block out the neighbor's dogs or the sirens on the street, but if you want to experience true silence, you can try it here. Legend holds that the longest someone has stayed in the chamber is 45 minutes (Orfield Laboratories, Creator of the chamber, claim this record is untrue). Regardless, we've found the peace and quiet you've been searching for. Good luck battling your inner demons.
Orfield Laboratories, 2709 East 25th Street, Minneapolis, MN
[Photo via @enterpriseuk]