A former Navy seal started a channel where he tells stories about the wierd and unexplained...or, just downright scary...things out there.
For example, he has a couple of "series" videos such as "Three Places You Aren't Allowed to Go, and the People Who Went Anyway" (their stories do not end well)...or "Three Photos and the Disturbing Backstory".
But, this one will really just blow your mind. Be warned that there is some NSFW language.