It was wonderful adventure!
What you’re seeing in this image is one of the many glazed terracotta medallions created by Andrea della Robbia and his workshop in the 15th century, found all around Florence, especially on former hospital buildings.
This particular baby is a swaddled infant, part of a series of roundels made for the Ospedale degli Innocenti (Hospital of the Innocents)—Europe’s first orphanage, founded in 1419 and designed by Filippo Brunelleschi. The infants represent the orphans the hospital cared for.