12. Mohenjo-daro
Mohenjo-daro, a jewel of the Indus Valley Civilization, astounded the world with its ingenious urban planning and sophisticated sanitation systems. Its grid-like streets and standardized weights anticipated the order seen in later cities such as Chang’an. Public baths, brick houses, and advanced drainage highlight the city’s commitment to hygiene and civic life. Though its sudden decline remains a mystery, Mohenjo-daro stands as a powerful testament to South Asia’s early achievements in city-building and culture.



