Hi all, this board is pretty sophisticated so I will give it a try!
Several years ago I toured inside the Pyramid of Cestus in Rome. I made a phone call and got a reservation. I paid a person who met me and the other visitors at the site. The tour was in Italian only. I remember it costing only €5.00, quite a bargain to get inside the pyramid. I don't remember the name of the agency, but I thought it was Pierrici (or some similar spelling).
I would like to tour inside the 'Round Temple' at the Foro Boario. I remember that was one of the places on the list of the agency I used years ago. I have searched on the web and through my journals and notes and cannot find the name of the agency I called.
Does anyone have information on how to visit the inside of lesser known monuments?