Our trip begins at the discovery of the city with a brief walk along Borgo San Pietro, until Via Piella. On the right we find a small window that opens up on a unexpected Bologna, the one with the where its water flow underground, which -up until two centuries
ago- they were uncovered channels. Looking through the small window the channel that flows between the coloured windows, enables one to live in a Venetian foreshortening.
The channel is the continuum of one of the main channels in Bologna, the Reno channel, at the entrance the city splits in two branches: the Cavaticcio’s channel and Moline’s channel.
In the medieval Bologna the channels were very important for communications and some of them were also navigable.
The Moline Channel at the time was utilised to produce the necessary energy to plump 15 water mills.
From the beginning of Nineteenth Century and the Post war Period most of the channels got buried: the small window gives us an idea of the ancient Bologna.