Due to my working travel I visited Cologne, Hamburg and Munich. I was able to have a walk at the evening and to take some picture.
The main landmark in Cologne is the Cologne Cathedral.
Since Hamburg is a port city, there are many other things to see in addition to the many ships. Unfortunately it rained very heavily in the evening that I decided to stop after about 10 minutes because I couldn’t protect my equipment well.
In Muenchen, I had a short walk. Due to the covid-19 virus it was really not much action in the streets.