From dazzling fireworks in big cities, to glow-in-the-dark parties, and cultural demonstrations, let's take a look at how people around the world celebrate New Year's Eve.
A huge display of fireworks behind the Big Ben lit up the skyline in London.
People brought in the new year against the backdrop of a fireworks display and bright, festive lights.
A group of Maasai tribe perform their traditional dance during the New Year's Eve celebration on Nungwi Beach in Zanzibar, Tanzania.
Nepalese indigenous people from the Gurung community play traditional instruments while attending the ethnic New Year's Lhosar celebration in Ghandruk village, Nepal, with the Mt Annapurna ranges in the background.
Tourists watch a fireworks display in front of Malaysia's landmark building, the Petronas Twin Towers, during the New Year's celebration in Kuala Lumpur, Malaysia.
A large fireworks display lit up the sky in Cologne, Germany.
Entertainers perform during a new year's eve countdown celebration ceremony to celebrate the upcoming 2018 new year at Yongdingmen Gate in Beijing, China
Fireworks explode over the Victoria Harbour during New Year's Eve to celebrate the start of year 2018 in Hong Kong.
Both residents and tourists joined in various activities on the streets of Bangkok to celebrate New Year's Eve and welcome 2018.
A South Korean family take a selfie photo as they attend the New Year countdown event to celebrate the arrival of 2018 during New Year's Eve celebrations at Bosingak in Seoul, South Korea.
The "family fireworks", displayed three hours before midnight every year ahead of the main show at midnight, fill the sky over the Opera House and Harbour Bridge in Sydney on New Year's Eve.