A participant shows her bricks during the LEGO Mystery Mural Build event at Union Station in Toronto, Canada, Nov. 22, 2018. To celebrate the diversity and playfulness of Canada, the LEGO Canada invited people to build the 40 ft x 12 ft brick mural using approximately 663,552 bricks from Nov. 12 to Dec. 2 this year. (Xinhua/Zou Zheng)