The Campidoglio is the highest hill in Rome. In antiquity, it faced the Forum. With the Renaissance and Michelangelo its orientation was reversed, facing the Vatican.
Here is a painting from 1667 showing the steps leading to the Campidoglio. This hangs in the Museo di Roma. Michelangelo designed the much of the Campidoglio. These steps are gently inclined so that horses could easily mount the hill.
The center building above is the Palazzo Senatorio and below is the side view with its medieval vestiges.
Here are some more photos of the exterior. Michelangelo designed the piazza.
These statues are located on either side of the top of the steps.
The Nile with its little Sphinx is represented below.
The following represents the Tiber. Can you spot Romulus and Remus?
Nothing like a jab in the side!
Below is a view of St. Peter's from the Campidoglio from the balcony.
From the same spot on the balcony, looking more to the left, is the Synagogue, and just beyond it, is the Tiber.
The internet here is S.....L.....O.....W...... It has taken me all day to post this! (I think our landlord needs to top off the internet--yeah, that's a thing here, at least for this rental.) For more and better detail on the site, I refer you to Wikipedia.
https://en.wikipedia.org/wiki/Piazza_del_Campidoglio#:~:text=The%20Capitoline%20Museums%20(Italian%3A%20Musei,home%20to%20the%20Capitoline%20Museums.