It's not from ethnic minorities, it's from Han nationality. Fujian Hakka Tulou is the most famous. Hakka people, also known as Hakka people, are the local Han people in Guangdong, Fujian, Jiangxi and other provinces in southern China, and are one of the people with wide distribution and far-reaching influence in the world.

Hakka (English: hakka, Hakka vernacular: Hak-k? Or Khak-k? , Hakka Pinyin: Hag 1-ga2 or Kag 1-ga2). Hakka is one of the Han ethnic groups, the only one that is not named after the region, and one of the ethnic groups with wide distribution and far-reaching influence in the world. So far, the academic circles have different opinions on how to call Hakka, and there is no conclusion yet.