This is the 2365th most frequent German word.
magdeburg
Magdeburg is a city in Germany, not a standalone word with a specific definition.
In this sentence, 'Magdeburg' refers to the city as the subject of the documentary.
Ich habe gestern eine Dokumentation über Magdeburg gesehen.
I watched a documentary about Magdeburg yesterday.
Here, 'Magdeburg' is part of the name of an institution, specifying its location.
Die Universität Magdeburg hat einen guten Ruf.
The University of Magdeburg has a good reputation.
Here, 'Magdeburg' is used as the proper noun referring to the name of the city.