The Great Bend of the Yangtze at Shigu : This is the famous Great Bend of the Yangtze at Shigu. At first appearance its just a River bend but if you know enough then you would be awed in the fact how this place has shaped human history.
Of all the Great Rivers rising in the Himalayas and Trans Himalayas, besides the one we are familiar with ie the Indus, the Ganga and the Brahmaputra, the others like the Salween, the Irrawady, the Mekong and the Yangtze all meet the Oceans to the South of the Himalayas.
All except one. The mighty Yangtze. It's at this point precisely that the Yangtze decides to do a u turn and go North. All the other parallel Rivers in this area, the Salween, the Irrawady and the Mekong go South. But for some reason the Yangtze changes course and it finally ends up in the Sea north of Shanghai.
For those unfamiliar with the Yangtze, think of it as the Indus and Ganga put together in their relevance to India. The same relevance the Yangtze holds for China. This is the River which nurtured the Chinese civilization. China is because of the Yangtze as a scholar once said. And it's this bend responsible for that.
According to scientists this is the place where the Indian and the Eurasian tectonic plates meet and due to some tectonic plate stuff the River turns and goes North instead of going South like all other mighty Himalayan Rivers.
This place is Epic. Watch Palin describing this place in his epic Himalayas series and you will understand what I mean.
Pic from January 2017. The Great Bend of the Yangtze at Shigu. Lijiang Nuxi Autonomous County, North Western Yunnan, China