Query: Vatican City is a band.

Relevant passages:
Enclave and exclave <=SEP=> An enclave is a territory , or a part of a territory , that is entirely surrounded by the territory of one other state . Territorial waters have the same sovereign attributes as land , and enclaves may therefore exist within territorial waters . An exclave is a portion of a state or territory geographically separated from the main part by surrounding alien territory ( of one or more states ) . Many exclaves are also enclaves . Enclave is sometimes used improperly to denote a territory that is only partly surrounded by another state . Vatican City and San Marino , enclaved by Italy , and Lesotho , enclaved by South Africa , are the only completely enclaved states . Unlike an enclave , an exclave can be surrounded by several states.The Azeri exclave of Nakhchivan is an example of an exclave .   Semi-enclaves and semi-exclaves are areas that , except for possessing an unsurrounded sea border , would otherwise be enclaves or exclaves . Enclaves and semi-enclaves can exist as independent states ( Monaco , Gambia and Brunei are semi-enclaves ) , while exclaves always constitute just a part of a sovereign state .   A pene-enclave is a part of the territory of one country that can be approached conveniently -- in particular by wheeled traffic -- only through the territory of another country . Pene-enclaves are also called functional enclaves or practical enclaves . Many pene-exclaves partially border their own territorial waters ( i.e. , they are not surrounded by other nations ' territorial waters ) . A pene-enclave can also exist entirely on land , such as when intervening mountains render a territory inaccessible from other parts of a country except through alien territory . A commonly cited example is the Kleinwalsertal , a valley part of Vorarlberg , Austria , that is only accessible from Germany to the north .

Vatican City <=SEP=> Vatican City ( -LSB- ˈvætᵻkən_ˈsɪti -RSB- Città del Vaticano -LSB- tʃitˈta ddel vatiˈkaːno -RSB- Civitas Vaticana ) , officially Vatican City State or the State of Vatican City ( -LSB- Stato della Città del Vaticano , links = no -RSB- -LSB- Status Civitatis Vaticanae , links = no -RSB- ) , is a walled enclave within the city of Rome . With an area of approximately 44 hectares ( 110 acres ) , and a population of 1,000 , it is the smallest state in the world by both area and population . However , formally it is not sovereign , with sovereignty being held by the Holy See , the only entity of public international law that has diplomatic relations with almost every country in the world .   It is an ecclesiastical or sacerdotal-monarchical state ( a type of theocracy ) ruled by the Bishop of Rome -- the Pope . The highest state functionaries are all Catholic clergy of various national origins . Since the return of the Popes from Avignon in 1377 , they have generally resided at the Apostolic Palace within what is now Vatican City , although at times residing instead in the Quirinal Palace in Rome or elsewhere .   Vatican City is distinct from the Holy See ( -LSB- Sancta Sedes , links = no -RSB- ) , which dates back to early Christianity and is the main episcopal see of 1.2 billion Latin and Eastern Catholic adherents around the globe . The independent city-state , on the other hand , came into existence in 1929 by the Lateran Treaty between the Holy See and Italy , which spoke of it as a new creation , not as a vestige of the much larger Papal States ( 756 -- 1870 ) , which had previously encompassed much of central Italy . According to the terms of the treaty , the Holy See has `` full ownership , exclusive dominion , and sovereign authority and jurisdiction '' over the city-state .   Within Vatican City are religious and cultural sites such as St. Peter 's Basilica , the Sistine Chapel and the Vatican Museums . They feature some of the world 's most famous paintings and sculptures . The unique economy of Vatican City is supported financially by the sale of postage stamps and tourist mementos , fees for admission to museums , and the sale of publications .