"Conquer the Carpet" indoor off-road challenge held in Surrey, Canada

Local residents watch the "Conquer the Carpet" indoor off-road challenge in Surrey, Canada, Jan. 28, 2018. About 200 RC car racers from Canada and United States participated in the "Conquer the Carpet" indoor off-road challenge to compete for trophies during the two-day event. (Xinhua/Liang Sen)