Take a tour of the closest Chinese city to North Korea - the nearest thing to the outside world most North Koreans will ever see

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The Chinese city of Dandong is located less than a mile away from the North Korean settlement of Sinuiju - but the two cities could hardly be more different.

The two cities - divided only by the narrow Yalu River - are so close that people can easily see over the border, and into each others' lives.

Dandong is usually the first port of call for trucks crossing over from North Korea to China, and the only part of China, or the outside world, many North Koreans will ever see.

"Nowhere in the world is there such a difference between what life looks like on opposite sides of the river or the fences that separate the two countries," wrote Reuters photographer Damir Sagolj in his description of North Korea's borders with its neighbours.

Scroll down to learn more about Dandong and Sinuiju.