Tour of the East Pole [camera]. Wusu Town is the smallest town in the world. There is only one household in the permanent population, but it has a long history and rich tourism resources. It is also the largest salmon fish factory in China. There is only one small road, one factory building and one border guard post in the town, but it is quiet. Tour of the East Pole [camera]. Wusu Town is the smallest town in the world. There is only one household in the permanent population, but it has a long history and rich tourism resources. It is also the largest salmon fish factory in China. There is only one small road, one factory building and one border guard post in the town, but it is quiet. Tour of the East Pole [camera]. Wusu Town is the smallest town in the world. There is only one household in the permanent population, but it has a long history and rich tourism resources. It is also the largest salmon fish factory in China. There is only one small road, one factory building and one border guard post in the town, but it is quiet.