The internet, as useful and entertaining as it might be, also has its share of things nobody can explain. Webdriver Torso's strange YouTube videos are just the latest phenomenon that has caught our imaginations.

Alltime10s quickly walks us through a number of curious internet mysteries, from codes nobody can seem to break to Bitcoin. John Titor is arguably not a mystery in that none of his predictions came true, but I'm counting it since we don't actually know who was behind it. Plus, he was the inspiration behind some of the stuff in Steins;Gate. I'd also never thought about internet black holes before, but now that I know about them, I'm probably going to be creeped out whenever a message of mine doesn't doesn't actually go through—which, y'know, isn't that uncommon for any one of us to experience.

10 Unsolved Mysteries of the Internet [Alltime10s]