Vatican City is a theory that consists of a city and its dependent territories .
Vatican City -LRB- -LSB- ˈvætᵻkən_ˈsɪti -RSB- Città del Vaticano -LSB- tʃitˈta ddel vatiˈkaːno -RSB- Civitas Vaticana -RRB- , officially Vatican City State or the State of Vatican City -LRB- -LSB- Stato della Città del Vaticano , links = no -RSB- -LSB- Status Civitatis Vaticanae , links = no -RSB- -RRB- , is a walled enclave within the city of Rome .