On Ughi’s 1729 map, you can see the Church of Sant’Iseppo. Behind it are various gardens that no longer exist. This is now a working class neighborhood where many Venetians live.
Today’s Casanova story took place in these gardens, where the famed lover put the moves on a young (very young) girl named Barbarina. They went on a picnic, sanctioned by Barbarina’s mother, and at one point Barbarina climbed a fig tree while Casanova stood beneath. Love apparently followed.
(Sorry for the typo on the YouTube video where I mistakenly called it San Iseppo.)