Nearby there is an industrial monument. Here are old huge machines with which we used to generate electricity from gas. Once a year, it brings together a lot of crazy people. These people build from old parts back together machines and get them to work. That makes a lot of noise and is particularly well for many children a lot of fun. Children can for the first time in her life see right machines that work. At the same time here spare parts are exchanged and sold. Here you can see oddballs and geeks. There some photos of the exhibition and the collectors and hobbyists.