We track four people on their journey.
Why Iraqi refugees abandon Europe and return home
01 Jan 2013 08:56 GMT
Fireworks lighted up the sky from The Sydney Harbour Bridge at midnight during New Years Eve celebrations in Sydney, Australia, December 31.
Tens of thousands of people lined Hong Kong(***)s Victoria Harbour to view a $1.6m fireworks display, said to be the biggest ever in the city.
After nearly five decades under military rule that discouraged or banned big public gatherings, about 90,000 people witnessed Myanmar(***)s first New Year(***)s Eve countdown in a field in the largest city of Yangon.
People gathered to celebrate the New Year at Imjingak in Paju near Panmunjom, which borders South and North Korea.
Two revellers kissed each other as they celebrated the new year during a count-down event at the Summer Palace in Beijing.
Indians lighted candles to welcome the New Year across cities like Allahabad. Celebrations in the country were muted following the recent gang rape of a young woman that triggered mass protests.
Egyptian activists held candles as they took part in a rally on the second anniversary of the attack on the All Saints Church (al-Qiddissine) in the city of Alexandria.
Pope Benedict XVI visited the Nativity at St Peter(***)s Square in the Vatican. He said that despite all the death and injustice, goodness prevails.
Palestinians waved their flag as they celebrated New Year(***)s Eve in the West Bank city of Ramallah.
Spanish inhabitants of Campello, a town near the southeastern city of Alicante, posed with a banner reading "Happy New Year 2013" as they welcomed the New Year.
Tens of thousands of people gathered to celebrate the New Year in front of St Basil cathedral at Red Square in Moscow.
Transport apps are revolutionising commutes for the middle classes, but poorer citizens still face daily gridlock.
Poverty & Development, Asia, India
Cubans get amnesty at the US border, but reaching it involves a risky journey along the Central American migrant trail.
Human Rights, Latin America, Cuba
In many ways, Michael is just like any other 11-year-old, but he has had four open heart surgeries.
Health, US & Canada
Follow a dancer through the exhaustion and jubilation of Peru's days-long Virgin of Candelaria festival.
Arts & Culture, Latin America, Peru
We travel to Chile to meet a group of young scientists determined to develop smart plant-based food to save the planet.
Science & Technology, Chile, Food
We follow the journey of a plastic bottle to find out what it takes to truly recycle the product creating zero waste.
Science & Technology, US & Canada, Environment
A couple working to protect LA communities from gang violence is caught in the crossfire of the US war on gangs.
Politics, Gang violence, US
South Koreans drink twice as much liquor as Russians, but is this national obsession with alcohol reversible?
Health, Asia, South Korea