What are best documentaries you have watched this year?

The World at War (https://www.imdb.com/title/tt0071075). 26 hour-long episodes; one of the best documentaries I have ever seen.

Chernobyl.

https://www.amazon.com/Chernobyl-Season-1/dp/B07PLM1ZKM

The one where Bill Gates talks about toilets the whole time

Jk

Unacknowledged on Netflix was a trip and a half