Welcome to Rome! This isn't the Rome you're used to with sun soaked stones, summer dresses, and gelato.This is the Rome with ice, snow, and touques. True it's much colder then it usually is. On the positive there are a lot less people seeing the sites.
The above two photos and this one is of San Giovanni. We got slightly lost when we first stumbled upon this. Rome is overflowing with sites like this. Really you have no idea how important something is. It could be a lesser site which isn't even mentioned in the guide books. Keep in mind, that is only because it is dwarfed by all that is here. If you are an interesting Church you have to compete with St. Peter's Basilica, and this one, San Giovanni which is known as the first church in Christendom.