Though he usually tackles real-world issues in his ultra-popular educational videos, CGP Grey took time off from blowing your mind with amazing facts about Canada to celebrate the release of the last Hobbit film. In "The Lord of the Rings Mythology Explained," Grey details the complex world behind J.R.R. Tolkien's epic in a simple and easy-to-understand manner. It's a short and sweet video that will leave you entertained and also more knowledgable about the history of Middle-Earth. And there's nary a silly song to be found.