The Friedberger Market is a popular place for the Frankfurt after-work crowd where locals unwind after a long week of work and stress. While we typically recommend some exercise-based stress relief, it's also nice to unwind with a cocktail after a cross-country flight and a few business meetings.
On mild autumn evenings and cozy winter days, this is the "place to be," to end a stressful work week. They have a few rules: leave by 11:00 pm and use proper facilities when using the restroom. The latter seems odd, but in a large group setting, certain instances probably take place.