It’s so easy to be overwhelmed by St. Peter’s – the space is so vast, even when full of tourists it doesn’t shrink down.
The baldacchino over the high altar at St. Peter’s is one of the more recognizable objects. Cast from bronze allegedly taken from the roof of the Pantheon, it was designed by Bernini (remember the staircase from earlier?) and marks not only the center of the crossing under the dome, but the grave of St. Peter. While one of its alleged functions is to provide a bit of human scale to the vast space of the basilica, it is so massive that it only compresses the space if there are no people around to provide comparison.
This view into the transept from the crossing with the people in the foreground I think really helps give you a sense of scale for the place.
This is a view of the entrance with its two clocks, as seen from the mid-nave.
On a separate but related note, it’s interesting how we refer to Rome and the Vatican interchangeably when we speak of the seat of the Catholic Church, when in fact they are two distinct entities. This was not always true, of course- especially during the Renaissance through the early 19th century, it was literal truth to say that Rome was the papal seat. Now, of course, the Vatican is in fact not only a separate city within the city of Rome, but in fact a separate nation, complete with its own passports. The Vatican is in fact the world’s smallest country.