Searching for Carravagio
We weren't able to get tickets to the Borghese, nor to the temporary Caravaggio exhibit at the Palazzo Barberini. We tried months ago, but it was too late. So today, with a bit of research, we bought a 24-hour transit pass and spliced together our own Caravaggio tour. The best three paintings were in a church and free. It was a fun way to get to different parts of Rome. And around every turn is another 2000-year old ruin.
(Carravagio's A Penitent Mary Magdalene, Rest on the Way to Egypt, and John the Baptist.)

(Maestro Jacomo, Boy Singing)
And in the hunt, I found a new favorite artist, one I had never heard of before: Maestro Jacomo. His paintings are of figures in candlelight: a young boy singing, a woman wth lantern, a boy holding a bat.
Then we did the goofy touristy thing and stuck our hands in the Mouth of Truth (Bocca della Verità ). It didn't bite our hands off, so we must be relatively truthful.
(All three of these Carravagio paintings are of St. Matthew.)