Embedded is a video that explains how the roar of Godzilla was created. This is from the Today I Found Out Youtube channel at https://www.youtube.com/channel/UC64UiPJwM_e9AqAd7RiD7JA.
If you're looking for more here are some others I've found really interesting:
From what I've seen TopTenz features the same host of Today I Found Out. I found TopTenz first, which led me to Today I Found Out. You can see TopTenz at https://www.youtube.com/channel/UCQ-hpFPF4nOKoKPEAZM_THw.
Bright Side: https://www.youtube.com/channel/UC4rlAVgAK0SGk-yTfe48Qpw
Origins Explained: https://www.youtube.com/channel/UCmLQqA5g62GIfQa9oME05wQ
Big Think: https://www.youtube.com/channel/UCvQECJukTDE2i6aCoMnS-Vg
Ted (https://www.youtube.com/channel/UCAuUUnT6oDeKwE6v1NGQxug) contains mostly "Ted Talks" videos. These are usually speeches people give on a variety of topics. You may find many of them interesting.
Also, if you're interested in learning things pertaining to subjects students usually study in school or college, you should check out Khan Academy (https://www.youtube.com/channel/UC4a-Gbdw7vOaccHmFo40b9g).
It's never too late to learn something new!