Luckily I had another sketch book with me, so here are the two sketches I did after Bruges.
This one was done on the train from Bruges to Frankfurt.

And here is one done on the plane from Frankfurt to New York. I misplaced my favorite drawing pen and had to borrow one from the woman sitting next to me that didn't behave as well as I'd like.
I wonder how many sketches exist in the world done by people with time to kill on planes and trains. Probably a lot.