Mohenjo-daro

The culture of Mohenjo-daro was the most extensive of the modern civilizations of antiquity (along with Egypt, Mesopotamia, and China).

An excerpt from the article 26 facts about Mohenjo-daro
It occupied an area of ​​650 thousand square meters up to 1.5 million square kilometers. Its positions are located throughout the territory of modern Pakistan, in northwest India, and in eastern Afghanistan.