My wife sings in a choir in Hulsberg, and they organised a 4 day trip to Berlin.
We had terrific weather, and visited a lot of sights. And had a lot of Bratwurst and Currywurst.
There are worse ways to spend a weekend.
I quickly made this sketch of the backside of the Brandenbuger Tor, while the group passed by, obviously there was no time to paint on location (I can't expect 50 people waiting for me). I painted it an hour later, while sitting on a nice terrace in the sun drinking a nice beer.