How much did hadrian's wall cost to make?

Hadrian's Wall, built under Roman Emperor Hadrian starting in AD 122, is estimated to have cost around 6,000,000 sesterces, a significant sum at the time. This amount reflects the extensive resources required for its construction, including labor, materials, and logistical support. The wall stretched approximately 73 miles across northern England, serving both defensive and administrative purposes. Its construction symbolized the Roman Empire's northern frontier and the investment in military infrastructure.