2. Selous Game Reserve, Tanzania
This 21,000 square mile game reserve, one of the largest of its kind in the world, is home to exactly zero permanent human settlements. The Tanzanian government strictly controls all human activity in the reserve, so almost all of the noise that you’ll hear comes strictly from the animals. Elephants, crocodiles, hippopotami, and zebras, just to name a few. On a trip to the area, perhaps the loudest sound you’ll hear is the roar of a lion!
Image Credit: Murky1 via Flickr