The Harbin International Ice and Snow Sculpture Festival in China held its opening ceremony on Sunday 5 January, amid fireworks and celebrations.
About 220,000 cubic metres of ice and snow were reportedly used to build the ice world, including a frozen ice palace.
There was even an ice steam train.
The annual festival, in China’s north-east Heilongjiang province, is one of the biggest ice and snow festivals in the world.
There are also swimming competitions in frozen water. Participants seen above are competing in the Songhua River.