This is the rio San Barnaba. We're staying about halfway
between the second and third bridges. I took this shot from
the attic of Ca' Rezzonico, which I plan to visit again
while we're here (first time was many years ago, when my friend
and I were the only ones there and it still looked pretty
much as it had when Robert Browning's son, Pen, owned it).
Now you're not allowed to take photos or—heaven forfend—touch
anything. Whatever—it's still a cool place.