What wonderful popular science documentaries are there?

A few years ago, cctv9 often broadcast some foreign documentaries. At that time, movies were all-encompassing, from wormholes to bacterial cells in the universe, which made me fall in love with documentaries as soon as I was in junior high school. Here, based on what I have seen, I recommend some foreign ones to you, and you are very welcome to add them. The world after the disappearance of human beings, in the special effects of this documentary, seems very rough. Gradually, some netizens think that this film is too idealistic and that the end of mankind does not mean the end of the earth. I was deeply impressed by learning about the universe with Hawking. Human Travel was secretly watched behind my parents' backs. I was very excited and shy. Beautiful China is the first documentary jointly produced by bbc and CCTV. With all due respect, it's much better than the later Tip of the Tongue. I like these little things better than the world, and I am inexplicably curious about parasites. _ ゝ`) "Ant Planet" is the same as above. Little ants are my favorite creatures; The NHK documentary "Documentary 72 Hours" has seen so many things in the universe, and there are also many touching places in ordinary daily life. The original documentary "2 1 guide to the century" can still be filmed like this, and I learned a lot of gestures. Oh, no, I learned a lot of knowledge. Since the broadcast of China on the Tip of the Tongue, domestic documentaries have gradually entered people's field of vision, but there are still some shortcomings. For example, in Super Engineering, commentators often say that "the engineer has encountered difficulties" and "the engineer has overcome difficulties". When solving a difficult problem, another one comes at once, but the principle and scheme of solving the problem are pushed aside. In order to highlight the complexity of the project, a "difficult problem" was put forward.