This sort of tourist boat is a new thing ion the Arno River which speaking to friends, the locals are not too crazy about. I believe they are powered by electric motors and the Gondola type oar seems to be mainly for looks.
The top section is part of the Vasari Corridor (1565) which provided the Medici safe passage between residences and government offices. I have not visited but the interior is decorated with works of art from well known artists.
Live entertainment by various artists on most days until around 11:00 PM. Some of these artists are very talented performers and play a wide variety of music including popular hits by Elvis and The Beatles.