technology
The advanced architecture and construction techniques of the Indus cities is also shown with impressive dockyards, granaries, warehouses, brick platforms, and protective walls. The walls were probably constructed to protect them as much from floods as from outside attackers. Famous Indus Valley cities include Mohenjo-Daro. This city was very well planned, with wide, straight streets and large buildings. Harappa (below) was also a major city during this time.
