New Zealand’s capital is associated with famous New Year’s Eve fireworks at Auckland’s Sky Tower.
Auckland is New Zealand’s largest urban area and is among the major cities to celebrate the New Year early because of its position in the Pacific. The Sky Tower, the tallest freestanding structure in the Southern Hemisphere when completed, provides the vertical focal point for the city’s midnight display.
The question identifies the country rather than the city: Auckland is the event’s location, while New Zealand is the island country. That distinction matters because Wellington is New Zealand’s capital city, but Auckland is the city widely associated with the Sky Tower fireworks. The tower’s height and visibility make it an especially recognizable landmark during televised coverage of the first celebrations of the new year.