There are fewer and fewer places on our planet that are free from human intrusion. Popular national parks are packed with tourists in the summer. The sound of honking horns and car alarms drowns out bird calls and howling wolves. But there are places so remote that human noise is practically nonexistent. This isn’t to say these places are silent. In fact, nature can be loud when left (relatively) undisturbed. Click through to check out some of your planet’s quietest places.