YouTube will forever exist in the history books for the way it transformed the Internet, but here are a few weird yet lesser-known facts that you've probably never heard before.

1. Despite its popularity, YouTube is still smaller than Facebook. According to a recent study, 77% of Internet users are on Facebook while 63% are on YouTube.

2. 80% of YouTube traffic comes from outside the U.S. On its own, this statistic is pretty reasonable. But can you guess which country provides most of those non-U.S. views? If you guessed U.K., you're wrong. China? Wrong. Keep guessing.

The answer is Saudi Arabia with more than 90 million views every day.

3. The most searched topic on YouTube is... Music. Nothing weird about that, right? Well, the second most searched topic on YouTube is Minecraft. We already know that Minecraft is super popular, but I doubt anyone expected it to be that popular.

Second on YouTube? That's just insane.

4. 82% of U.S. Internet users between 14 and 17 use YouTube. At first this doesn't sound like a weird statistic. Teens love YouTube! But flip it around: 18% of U.S. Internet users between 14 and 17 don't use YouTube.

Basically, 1-in-5 teens who use the Internet couldn't care less about YouTube. A bit hard to believe considering how prone this generation is to Internet addiction.

5. Over 150 countries participated in the Ice Bucket Challenge thanks to the viral power of YouTube videos. In total, all of the Ice Bucket Challenge videos together brought in over a billion views.

Got any weird facts about YouTube of your own? Share them with us in the comments below!

Image Credit: YouTube on a Mac by Alexey Boldin via Shutterstock