Occurrence of Attributes in Original Text

The text related to the cultural heritage 'City of Potosí' has mentioned 'World' in the following places:
Occurrence Sentence Text Source
It is one of the highest cities in the world at a nominal 4,090 metres (13,420xc2xa0ft).
Located in the Bolivian Tin Belt, Cerro Rico de Potosxc3xad is the world's largest silver deposit and has been mined since the sixteenth century, producing up to 60,000 tonnes by 1996.
The rich mountain, Cerro Rico, produced an estimated 60% of all silver mined in the world during the second half of the 16th century.
Spanish American mines were the world's most abundant sources of silver during this time period.
Potosxc3xad is home to football teams Real and Nacional, which play their matches at the 32,000-capacity multi-purpose stadium Estadio Vxc3xadctor Agustxc3xadn Ugarte, one of the highest stadiums in the world.
Potosxc3xad is the example par excellence of a major silvers mine of the modern era, reputed to be the worldxe2x80x99s largest industrial complex in the 16th century.