The border between China and North Korea is 1,420km long, or 880 miles. From West to East, there are countless of crossings dividing these two countries.
The China-North Korea border is quite special, as it shows the delicate relationship not only between these two countries, but the United States as well.
It is well-known that North Korea is mostly a closed country, and China has the largest border with the country.
The international border can be crossed by guided tours. As of June 2011, the northern border to China has been opened, and Chinese citizens can go to Luo, a small border region where they are free to explore and photograph.
This documentary explores the border, as one man decides to go on a daring journey along the border.