The striking feature of the Indus Valley Civilization was that it was an urban civilization. This means that the people of this civilization lived in well-planned and organized cities, which were characterized by advanced infrastructure and amenities. The cities in the Indus Valley Civilization, such as Harappa and Mohenjo-Daro, had sophisticated plumbing and drainage systems, brick buildings, and uniform grids of streets. They also had public buildings, marketplaces, and granaries. Additionally, the urban areas were supported by a thriving agricultural sector, which provided the necessary food and resources for the population. Thus, while agriculture was an important aspect of the civilization, it was the urban nature of the Indus Valley Civilization that made it particularly notable and unique for its time.