Secret Rome

Thanks to a book from my favourite series on secret cities, I've recently discovered this quite amazing staircase from 18th century in Piazza Farnese (usually unnoticed as the gate is often closed and anyway Palazzo Farnese is much grander and takes your full attention). Go inside if you pass by (look for the Cyprus embassy).

I want to see all the places mentioned in the book, it will take me ages!