I had a four hour layover in Frankfurt. It was long. I don’t really know what to say other than it was long. I read a book and walked around mostly. I ate a really bad grilled cheese and wondered how anyone could ruin the grilled cheese.
The most interesting parts were seeing the bikes that the airport employees rode around the terminal. There were ones for janitors and their supplies and regular ones for employees going to different gates and such. Even in bike obsessed Portland I had never seen anything like it.