How does the world welcome the New Year?

Sydney, Australia

A rainbow-themed fireworks display in Australia’s largest city Sydney kicked off its 2018 celebrations, as 1.5 million spectators were expected to pack the city’s foreshore to watch the fireworks light up the night sky.

According to AFP, the technicolor display also included a rainbow waterfall of fireworks cascading off the Sydney Harbor Bridge to mark Australia's legalization of same-sex marriage following a nationwide postal vote earlier this year.