The Basilica of Our Lady (Basilica di Santa Maria Maggiore ) is not far from the train station. In the morning, there are not many people who have seen the queue and go in. It is free to visit. You also need to go through security checks before entering, which also reflects the importance of the Basilica of Our Lady as one of the Roman Catholic special pontificates. Today's Roman sky is very blue, if such a sky can live where I live, what a beautiful thing!