Tours, Italy
The Feu Hugon tower, now defunct, is presumed to be the first medieval residence of the Counts of Tours, built around 875, although it may be later and distinct from the Palais Comtal (below), all located in the northeast corner of the ancient Gallo-Roman Cité.
Listen to the audio guide for Feu Hugon tower Free on WIP — starts by itself when you arrive, even with the screen off