The quietest place on earth will drive you insane
In 2015, Microsoft built a room that is now officially designated in the Guinness Book of Records as the quietest place on Earth.
Radio frequency anechoic chamber, Antennas Research Group, Democritus University of Thrace, Greece. The interior surfaces are covered with pyramidal Radiation Absorbent Material (RAM) which are made of rubberized foam impregnated with mixtures of carbon and iron.(photo credit: Wikimedia Commons)Updated: 
