A gruelling event that was first established in 1999, the Great Wall Marathon in Beijing, China, features 5,164 steps and the last two years have seen it attract participants from more than 70 countries.
A gruelling event that was first established in 1999, the Great Wall Marathon in Beijing, China, features 5,164 steps and the last two years have seen it attract participants from more than 70 countries.
READ FULL ARTICLE