Photo of the Week: The Incredulity of St. Thomas by Marco da Siena

The Incredulity of St. Thomas by Marco da Siena (c.1525–c.1587).
Altarpiece in the cappella di San Teodoro (St. Theodore chapel) inside the Duomo di Santa Maria Assunta, or Cattedrale di San Gennaro, in Naples
Photo by Andrew Giordano