Insula dell’Ara Coeli
The insula was built at the turn of the 1st and 2nd centuries CE and was later rebuilt many times. It is located at the foot of the Capitoline Hill, from Via del Teatro di Marcello, and is perfectly visible to everyone heading from Piazza Venezia towards the monumental stairs leading to Piazza dell Campidoglio. Today, only three floors of the tenement house protrude above the street level – the second and third floors, as well as a small part of the fourth floor. The ground floor and first floor are located in a deep excavation and can only be seen by leaning over the railing (be careful!). Unfortunately, only the second and third floors can be visited. The rest are closed and even with a reservation it is impossible to see them.