The upper part, built using plenty of iron materials to counter wind, has four orders of small loggias.
On the lower right corner of the façade is a statue (1480) of the Madonna salutis portus, sculpted by Matteo Civitali to celebrate the end of the 1476 plague.
From the southern transept rises the bell tower, built in the 12th-14th centuries, with a series of single, double and triple mullioned windows.
Amongst the artworks in the interior, are a Madonna with Child terracotta by Luca della Robbia and a panel with Four Saints by Filippino Lippi.
The body of a pilgrim saint, San Divino Armeno, is preserved under the high altar in the church.