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There are plenty of awesome documentaries on YouTube you can watch for free. We’ve rounded up the best ones from different genres including crime, business, and technology, some of which have amassed millions of views.

Unlike the best free movies on YouTube listed here, these YouTube documentaries aren’t geo-restricted, meaning they are available globally.

The best documentaries on YouTube:

Editor’s note: We’ll be updating this list of the best documentaries on YouTube regularly as new ones hit the service.

1. Shenzhen: The Silicon Valley of Hardware

This documentary takes you inside the bustling city of Shenzhen, China, which has been dubbed The Silicon Valley of Hardware. Shenzhen is home to various companies manufacturing all sorts of consumer electronics including smartphones, tablets, and TVs, to name a few. It’s also a city where tons of copycat versions of the latest and greatest smartphones are made and sold. For a tech enthusiast, this YouTube documentary is a must-watch.

2. Inside North Korea

If you want to know more about North Korea, this is the YouTube documentary for you. It takes you on a tour of this isolated communist country, showing you a glimpse of people’s daily lives. It also includes a fascinating interview with a North Korean refugee who fled his country in search of a better life. The documentary is divided into three parts. You can watch the first one on YouTube via the button below, while the second and third parts can be accessed by clicking here and here.

3. This is the Zodiac Speaking

Back in the 1960s, a serial killer was on the prowl in California. Called the Zodiac killer, this vicious individual managed to outsmart law enforcement and never got caught. The killer even sent a series of letters to the press that included cryptograms believed to contain his identity. This is the Zodiac Speaking revolves around the murders of the serial killer and the person who may be behind them.

4. World’s Scariest Drug

This YouTube documentary revolves around a drug called Scopolamine, which is also known as The Devil’s Breath. It’s said to be so powerful that it makes you incapable of exercising free will. This documentary examines the drug up and close and gives you an idea of the effects it has on one’s body, thanks to interviews made with people who have used it. It’s a very popular documentary that was filmed in Columbia and has amassed over 35 million views so far.

5. The Story of Aaron Swartz

If you’re into technology, you probably know or have at least heard of Aaron Swartz. He was a programming prodigy who helped develop the RSS web feed and was one of the co-founders of Reddit. He was also an internet activist who got into trouble with the law, which did not end well for him. This YouTube documentary follows the life of Aaron Swartz, showing you all his accomplishments along with his legal troubles.

6. The Extraordinary Genius of Albert Einstein

Learn more about one of the greatest minds of all time in this YouTube documentary. It revolves around a workshop on the Theory of Special Relativity. However, the aim of the documentary is not to make viewers understand the theory, but to use Einstein’s discovery as a case study to guide people through real human thinking. It also covers the topic of how was Einstein able to make his discovery.

7. A Murder In The Family

If you’re into crime and drama, this is the documentary to watch on YouTube. The story revolves around a woman who tries to prove that her daughter-in-law is responsible for her son’s death. It’s a gripping story in which the woman hires detectives to help her find the truth and even kidnaps her own grandchildren. It’s definitely a must-watch.

8. Lo and Behold: Reveries of the Connected World

Needless to say the internet and technology have changed the way we work, interact, and live. This documentary on YouTube explores the effects of the connected world, considering both our present and our future in relation to modern tech. The film is led by renown German filmmaker Werner Herzog.

9. Holy Land: Startup Nations

Israel is known as The Startup Nation, as it has the most tech startups and venture capital per capita in the world. This documentary takes you behind the scenes, showing you how technology and innovation are becoming the country’s dominant themes. It’s produced by Wired and shot in various cities throughout the country including Tel Aviv and Jerusalem. It’s a must-watch for those who love technology.

10. Life In A Day

The last entry on our list of the best documentaries on YouTube is called Life In A Day and is very unique. It’s aimed at future generations, which can check out what it was like to be alive on July 24, 2010. The documentary was created entirely from footage uploaded by YouTube users and shows various people living their day-to-day lives along with the challenges that come with it.

These are the 10 best documentaries on YouTube in our opinion, although there are plenty of other great ones available as well. We’ll update this post with new ones once they are uploaded to YouTube.