Foshan, alternately romanized as Fatshan, is a prefecture-level city in central Guangdong Province, China. The entire prefecture covers 3,848 km2 and had a population of 9,498,863 as of the 2020 census. The city is part of the western side of the Pearl River Delta Economic Zone whose built-up area was home to 65,694,622 inhabitants as of 2020, making it the biggest urban area of the world.
Foshan is regarded as the home of Cantonese opera, a genre of Chinese opera; Nanquan, a martial art; and lion dancing.
Wikipedia https://en.wikipedia.org/wiki/Foshan
Coordinates 23°1'29.167" N 113°6'52.681" E