Millions of people have flocked to Rio de Janeiro in Brazil to take part in one of the biggest New Year's parties in the world:
Thermal picture of the fireworks. Happy New Year! http://t.co/hlKp62z2TR
Crowds have gathered in a chilly Times Square for New York's annual New Year's Eve street party.
Happy new year everyone xxxx
Have a Happy New Year from me and all my Muppet friends http://t.co/1cXsIZM9XD
Happy new year. Be young. Be foolish. Be happy.
Tens of thousands of revellers have welcomed in 2014 at one of the world's best-known street parties.
An estimated 80,000 people from across the globe descended on the centre of Edinburgh to take part in the huge outdoor celebrations in the city known as the home of Hogmanay.
They counted down the last moments of 2013 before a spectacular fireworks display filled the skies above Edinburgh Castle and Calton Hill when the clock struck midnight.
The annual crackles of fireworks and chimes of Big Ben have rung in the New Year in London, where people queued for hours to get a prime spot on the Southbank:
Revellers were treated to an explosion of colour over the London Eye as the UK rang in the New Year: