The exhibition also marked the 50th anniversary of the day the US Marine Corps first landed on the Da Nang beach during the American War: March 8, 1965.
The landing location, called Red Beach Two by the US Marines, is now Xuan Thieu Beach. It belongs to a four-star resort on Nguyen Tat Thanh Street.
The city's Historical Science Association also held a talk about the American War and the country's Reunification Day.
The exhibition will run through the end of March.