From Sight Seeing to Science Seeing: I see (in Halle) what you don't see, and that is...?

Which inconspicuous plant by the side o the road used to be used to make tasty "workers' coffee"? Where can you fill up with hydrogen? And what is it good for? As a city of science, Halle has a lot to offer. That's why instead of "sightseeing" we're going "science seeing". Join us for a city walk for people of all ages.