The hottest month, the fastest marathon, the wildest auction prices... here is a look back at 10 new records in 2019.

Longest flight

Qantas completed the longest non-stop passenger flight in October, taking 19 hours and 16 minutes to test a direct route from New York to Sydney.

Just 49 people travelled on the Boeing 787-9 to minimise the weight on board and give the plane sufficient fuel range to travel more than 16 000km without re-fuelling.

Smallest survivor

Around the weight of a large apple when she was born, Saybie was announced in May by a California hospital to be the world's smallest baby ever to survive.

After discharging her following months of intensive care, the San Diego hospital disclosed that she had been born prematurely in December 2018 weighing a mere 245 grams.

Million-dollar parking

A parking space in Hong Kong's The Center skyscraper sold in October for a whopping HK$7.6m (more than $970 00) - about the price of a one-bedroom apartment in London's plush Chelsea.

Under two hours

Kenyan Eliud Kipchoge became the first man to run the marathon in under two hours in October when he set a time of 1hr 59min 40.2sec at an unofficial event in Vienna.

Record temperatures

Temperatures in July 2019 were the hottest ever recorded globally at an average of 16.75C for the planet, the US National Oceanic and Atmospheric Administration announced.

A heatwave in Europe the same month reset several record highs: 42.6C for Paris; 41.5C for Germany; and 38.7C in Britain.

Facebook fine

Facebook was in July slapped with the largest ever fine - $5 billion - imposed on any company for violating consumers' privacy.

Announcing the penalty, the Federal Trade Commission said it was also one of the largest ever issued by the US government for any violation.

Monster sale

Chinese consumers spent a record $38.3 bn on Alibaba platforms in the annual 24-hour "Singles' Day" buying spree in November.

It was a jump of 26% from the previous record high a year earlier, the e-commerce giant said.

Art auction highs

Amid furious Brexit wrangling, Banksy's "Devolved Parliament" painting depicting lawmakers as chimps was sold at auction in October for €11.1m, a record for the British artist.

A new auction record for a work by a living artist was set in May when Jeff Koons' stainless steel "Rabbit" fetched $91.1m.

Most medals

US gymnastics star Simone Biles scooped five gold medals in October to take her World Championship medal haul to a record 25, topping the 23 won by men's star Vitaly Scherbo of Belarus in the 1990s.

Summit speedster

Nepali mountaineer Nirmal Purj summited all of the world's 14 highest peaks in just six months and six days over April to October, smashing the previous record for the feat of almost eight years.