Visitors play at an ice maze during the 2019 Markham Ice and Snow Festival in Markham, Ontario, Canada, Feb. 9, 2019. Featuring dozens of ice sculptures made by Chinese and Canadian artists, the 10-day event kicked off on Saturday to provide an opportunity for all people in the long winters to enjoy the unlimited wonders and happiness in a unique realm of ice and snow. (Xinhua/Zou Zheng)