The triple play walk is Pantheon, Trevi Fountain, and the Spanish Steps. Visiting all three, including walking between them, can be done easily in under an hour. Giants planned 20 minutes to see the Pantheon. That was about 12 minutes too long. Compared to other sites in Rome there simply was not much to take in. Readers will surely disagree. If the Pantheon were in Cleveland, Ohio for instance the Giants likely would have stayed for an hour in ah taking in the splendor of the monument.
But hey, it’s worth 8 minutes and being able to say you have seen it.