A UNESCO World Natural Heritage Site in Yunnan, Chengjiang Fossil Site Museum is located near Maotianshan Hill, Chengjiang. Dating back 530 million years to the early Cambrian Period, it's one of the world's most vital fossil locations.

Discovered in 1984, it preserves over 16 phyla and 200+ species of marine organisms, including both hard and soft tissues. It vividly records the "Cambrian Explosion", when nearly all major animal groups suddenly emerged. As China's first and Asia's only fossil-focused world heritage, it offers unparalleled evidence for studying early life evolution. It's a priceless window into the origins of complex life on Earth.