Art History! And I get to learn too!
Consider, The Annunciation with St. Emidius, by Crivelli (1486):
I asked the fifth grader to read the text accompanying this work and identify five symbols:
The man walking with St. Gabriel is St. Emidius, who is invoked for protection against earthquakes. Look at the church model in his hands. The painting was commissioned for the Church of the Annunciation, and St. Emidius is patron saint of the Italian town of Ascoli, where the towers visible on the model can still be seen today. I’m sure that apart from being patron of the town, St. Emidius is a good saint for any construction project in earthquake-prone regions!