Explore the fascinating history of Vietnam's underground network of tunnels, known as the Cu Chi Tunnels. Learn about the incredible engineering feats of the Vietnamese people as they constructed this vast network of tunnels during the Vietnam War. Discover how the tunnels were used to
From Wikipedia
The tunnels of Củ Chi are an immense network of connecting tunnels located in the Củ Chi District of Ho Chi Minh City (Saigon), Vietnam, and are part of a much larger network of tunnels that underlie much of the country. The Củ Chi tunnels were the location of several military campaigns during the Vietnam War, and were the Viet Cong's base of operations for the Tết Offensive in 1968.