In a project little known outside China, a Swiss-led team worked for years to renovate the square of Sideng Village. The square was the site of the main market in Shaxi, a valley dotted with Bai villages in the Hengduan Mountains of southwest China.

A theater in Sideng’s village square.
A theater in Sideng’s village square. © ADAM DEAN FOR THE NEW YORK TIMES

That project began with Jacques Feiner, a Swiss conservation expert who had worked on the old city in Sana, Yemen. Around 2000, he was looking for a project along the South Silk Road and settled on the Shaxi Valley because the scale of the Sideng marketplace was manageable, said Huang Yinwu, a team leader and Swiss-trained architect.