This is Campo Sant’Angelo, one of the few squares with two well-heads, both from the 15th century. Here once stood an ancient church dedicated to the Archangel Michael, which was destroyed in the early 1800’s by Napoleon. A beautiful painting by the Venetian painter Canaletto depicting the square’s church and belltower still survives however.
Tucked away in a corner of the square you’ll find the small church of Sant’Angelo degli Zoppi – of the lame, which was used as a prayer-hall.