the underground was used for staging performers or slaves, and they had platforms that could be elevated to the stage level
bottom of the arch was quite fancier than the Paris Arc du Triomphe
this is the passeto/corridor from the Vatican's St Peter's to Castel Sant' Angelo
This left us with just enough time to go to the Fontana dei Quattro Fiumi by Bernini and the plaza it's in, and we finished by the nearby Pantheon which we only got to go inside the next day: The 3rd and last day was a monday, which meant no museums for the most part, but a good time to go see the Vatican. I had reservations for that too, but I upgraded that for a guided tour when we got there. The tour guide showed us a better picture of what we would see in the Sistine Chapel on pictures easier to see than the actual dome: And we then went for the tour. The art collection and wall/ceiling paintings is just amazing: and then more random art: After that, we finally got to the Sistine Chapel, another 'no pictures' zone (well no one seemed to care) and we went for another loop around to see the rest of the art: And the 2nd time around we took the 'secret' exit bypass to St Peter's Cathedral: Unfortunately, part of St Peter's closed earlier than they were supposed to, so we didn't get to see all of it, but oh well. We finished the tour by going through St Peter's Square and then we walked all the way to the Fontana dei Quattro Fiumi plaza, and then to the Pantheon before it closed this time: And that was it, this time for real, our time in Rome, and in turn Italy, was over. Even if we had 18 days on the ground, we sure saw a lot for that amount of time. I hadn't done a lot of research on Italy before preparing for the trip, and I have to say that I was very positively impressed by Italy. We really saw a lot of cool stuff, the best cathedrals in the world, and fantastic combined history that I'm not sure other European countries still have.