Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Historic Centre of Zacatecas' has mentioned 'World' in the following places:
Occurrence Sentence Text Source
[7][16] It is at the foot of the Cerro de la Bufa, in which was one of the greatest silver mines in the world.
[15] One exhibition is the "Murals of Osaka" created in 1969 when Fernando Gamboa was commissioned to archive Mexico's pavilion at the World's Fair in Osaka in 1970.
The office is in charge of fourteen percent of the World Heritage Sites in the world.