Here is the link to the Borghese Gallery collection.
https://borghese.gallery/collection/ It has both paintings and sculptures, often with religious themes. I looked at art work by Caravaggio, Titian, Raphael among others. Doerr mentions going to see a huge canvass by Caravaggio, hung in a church, which made me curious... I also saw a famous statue of David in my virtual tour.