Annual Canberra Balloon Spectacular festival held in Australia

Hot air balloons are seen in the sky during the annual Canberra Balloon Spectacular festival in Canberra, Australia, March 10, 2021. The annual Canberra Balloon Spectacular festival, a hot air balloon festival celebrated in Australia's capital city, is held this year from March 6 to 14. (Photo by Liu Changchang/Xinhua)