Much of the attraction of Rome is in just wandering around the old city. You can quickly escape from the major tourist routes and feel as if you are in a small medieval village, not a capital city.
! As a rule, you should pretty much never carry anything very valuable in any outside pocket, especially the front pocket of your pants.
Among the most significant resources: plenty of museums – Capitoline Museums (map), the Vatican Museums (map), Galleria Borghese (map) >> museodiroma.it
Other popular sites include *St Peter’s Basilica (map), the Roman Forum (map), the *Pantheon (map), the *Trevi Fountain (map), the *Spanish Steps (map), *Via Condotti (map), the *Villa Borghese gardens (map), the *Villa Giulia (National Etruscan Museum, map), *Piazza Navona (map), the *Basilica di Santa Maria Maggiore (map), the *Basilica di San Giovanni in Laterano (map), the *Castel Sant’Angelo (map), the *Campo de’ Fiori (map), the *Quirinal Palace (map), the *Lateran Palace (map) and the Palazzo Barberini (map), to name a few.
Vatican City (wiki, map) is an independent country inside the city boundaries of Rome, the only existing example of a country within a city.
The Esquilino rione (map), off Termini Railway Station (map), has evolved into a largely immigrant neighbourhood. It is perceived as Rome’s Chinatown. Immigrants from more than a hundred different countries reside there. A commercial district, Esquilino contains restaurants featuring many kinds of international cuisine.
Everyone one week a year there is no charge for admittance to all publicly owned landmarks and historical sites. This week, known as “La settimana dei beni culturali”, typically occurs in mid-May and for those 7 to 10 days every landmark, archaeological site and museum belonging to government agencies is accessible and free of charge.
For two weeks in August, many of Rome’s inhabitants shut up shop (literally) and go on their own vacations; many stores, restaurants and other amenities will be closed during this time.