An extensive underground network stretching over 200 kilometers (approx. 120 miles), these tunnels served as living quarters, supply routes, and hiding spots for Vietnamese soldiers during the Vietnam War. Today, visitors can explore sections of the tunnel, learn about wartime life, and see the ingenious traps used during the conflict. For a small fee, you can also use the firing range, shooting live rounds from guns used in the war.

Hue Imperial City Once the imperial capital of Vietnam during the Nguyen dynasty, this impressive citadel houses a variety of grand imperial structures including royal courtyards, grand palaces, ornate temples, and the Forbidden Purple City.