ANSWER: Antarctica
Explanation:
This is the world’s largest canyon which is far larger than the Grand Canyon in the US has been spotted by Chinese scientists who participated in the Antarctic expedition to the South pole. Canyon has more than 1000 kilometers in length and 1500 meters in depth as well as 26.5 kilometers in width. Grand Canyon was once the world’s largest canyon. China’s expedition team has found the canyon in the Princess Elizabeth Area of the South Pole.
