6. Shanghai saffron

A villager processes saffron crocus stigmas to create herbal medicine. [Xinhua/Cai Xingwen]

Shanghai's Chongming district is now home to China's largest artificial saffron farm.

This delicate spice, known for its golden threads and distinctive flavor, usually thrives under the Mediterranean sun. However, Chongming's mild climate and long growing season provide ideal conditions for this prized spice.

The history of saffron cultivation in Chongming dates back to the early 1980s. Today, it's a significant source of income for many local farmers.