Well, Vatican and Saint Peter's Cathedral. What could I say about that? Very little.
Sounds from the cathedral (MP3, about 100kB, 10 seconds).
On monday, I tried to go see the Vatican Museum, but the queue was about 200 meters, four people abreast, so I decided to use the hours of waiting for something more useful.
There was this cute dragon fountain just outside the Piazza San Piatro. Sound (MP3, about 100kB, 10 seconds).
I wanted to buy a monk's outfit. Something like this one (a Cistersian?) below, but preferably brown or black. Well, something like Bruno is wearing in his statue.
I found a group of catholic-priest-and-nun supermarkets by Via del Cestari, but there were no monk chothing. Apparently monks are too poor for places like this. Some of the shops were amazing though - I have never in my life seen as much gold.