Regular

https://youtu.be/zUSE9AzUd-E

Nature documentary, following the river Saale, 1 hour 30 mins, auf Deutsch.

The Saale is a river in Germany and a left-bank tributary of the mighty Elbe river. It is not to be confused with the smaller Franconian Saale, a right-bank tributary of the Main, or the Saale in Lower Saxony, a tributary of the Leine. It flows through the German states of Bavaria, Thuringia, and Saxony-Anhalt along some beautiful landscapes.

Regular

https://youtu.be/Q7Bi6tiWNCk

15-minute docu on the history of the Berlin Wall, in English.

The song in it is “Tear down these walls” by Runrig.

Read more about it:

https://en.wikipedia.org/wiki/Berlin_Wall