During Styopa's visit we were in Old Town looking for the Sparta fan shop so he could buy a jersey. He happened to look up and asked, "What's that?". He pointed skyward and this is what we saw.
According to the internets, This sculpture, more often referred to as the Hanging man was first exhibited at the exhibition “Respekt 97” at the Villa Richter in the Prague’s Lesser Town. Later installed at the Czech Cultural Center in Berlin; Moderna Muset in Stockholm; National Theatre in London; and the Embassy of the Czech Republic in London. Dimensions: 233 x 60 x 45 cm, 1996.
Somehow it ended up at rooftop level in Stare Mesto. When there is a breeze the man sways back and forth, so he's not hard welded to the horizontal poll. Of course, that could be an accident waiting to happen.