Located at the foot of the Frankfurt Fair Tower is the Hammering Man.
It is one of the most famous statues in Frankfurt, echoing the pace, historical roots and modernity of the city.
The Hammering Man also celebrates the worker, and is a universally themed sculpture.
Unlike most sculptures, the Hammering Man is a mechanized artwork.
You can see the hammer coming up and down.
Who knows if the hammering man has been hammering away since it was opened in 1991.