Corte Nova, Castello, near Via Garibaldi.

The companion well-head:

Both well-heads are depicted in de' Barbari's view of 1500, when what now is Via Garibaldi
was still a canal. Both are likely to date from 1322, which suggests that the wells in the print are
the same that we see today. Notice the gates at both ends of Corte Nova, absent today.