You ever visited the Vatican City?
I last went in the early 1980s and so was pleased that we visited it during the afternoon of my Rome city tour. I got a chance to spent a few hours exploring this religious centre. It is a State within Rome. As you enter through the small gate you pass into the country within a country. It is an impressive sight. Probably best explained by photos than words! I visited as part of my MSC Lirica city tour.
Declaration: I travelled as a gust of MSC Cruises UK on a 7-night Mediterranean cruise on the MSC Lirica. To find out more about the trip visit tipsfortravellers.com/msclirica