13. Metropolis
Netflix rating: 7.3
IMDb rating: 8
Directed by Nutopia Productions
With this educational documentary, you will get insight into some of the biggest metropolitan cities. Maybe you will even fall in love with one of them so that this documentary can serve you as a travel guide. The series includes some of the most popular cities in the world, and by watching it, you can learn a lot about their history and rich culture. There are six episodes, and each of them is dedicated to one city.