People celebrate and take photos of hot air balloon "Skywhalepapa" in Canberra, Australia on Feb. 7, 2021. The National Gallery of Australia (NGA) and artist Patricia Piccinini unveiled Skywhalepapa, a new hot air balloon, in Canberra on Sunday. According to NGA, Skywhalepapa is as tall as a 7-story building. It flew together with Piccinini's iconic Skywhale, commissioned for the Centenary of Canberra in 2013, on Sunday morning when some local residents joined the dawn event. (Photo by Liu Changchang/Xinhua)