They have the replicas of George Stephens' original kettle at the Weber Grill Restaurants in Chicago, Schaumburg, and Lombard IL. Also some of the old black & white photos are used as decorations in the restaurants.
That picture gallery is "der Grill-Akademie in Biebelsheim" which translates to The Grill Academy in Biebelsheim. A picture 2/3 way down the thread shows a Mercedes Sprinter van, with "Grill-Akademie on tour". So it must be a mobile grill academy put on by Weber, appearing at different locations depending on where the patrons enroll.
The Weber Grill Restaurants also offer grilling classes if you are in the area.