The Indus Valley Civilization, also known as the Harappan Civilization, was one of the earliest civilizations in the world, which flourished in the northwestern region of the Indian subcontinent from c. 2600 BCE to c. 1900 BCE. Some of the most important sites of the Indus Valley Civilization are:

Harappa: Harappa is one of the most well-known and significant sites of the Indus Valley Civilization, located in present-day Punjab, Pakistan. It was discovered in the 1920s and is known for its well-planned urban layout, drainage systems, and impressive architecture.

Mohenjo-Daro: Mohenjo-Daro is another major site of the Indus Valley Civilization, located in present-day Sindh, Pakistan. It is known for its complex urban planning, large public buildings, and sophisticated water supply and sanitation systems.

Dholavira: Dholavira is a lesser-known but important site of the Indus Valley Civilization, located in present-day Gujarat, India. It is known for its impressive water management systems, well-planned urban layout, and unique architecture.

Lothal: Lothal is an important site of the Indus Valley Civilization, located in present-day Gujarat, India. It is known for its well-planned dockyard, which suggests that the civilization had an extensive maritime trade network.

Kalibangan: Kalibangan is another important site of the Indus Valley Civilization, located in present-day Rajasthan, India. It is known for its unique fortification system, well-planned urban layout, and evidence of specialized craft production.