Manno Gate is the old south gate of the city of Yŏngbyon. Dating to the Joseon Dynasty

Joseon Dynasty

Joseon , was a Korean state founded by Taejo Yi Seong-gye that lasted for approximately five centuries. It was founded in the aftermath of the overthrow of the Goryeo at what is today the city of Kaesong. Early on, Korea was retitled and the capital was relocated to modern-day Seoul...

, the gate was first constructed in 1658, and later rebuilt in 1789. Once guarding the road to Pyongyang, it bears a striking similarity to Pyongyang's Taedong Gate.
It features a granite base topped by a two-story pavilion, the upper part of which bears a sign marking the gate as the old Yŏnju Castle Gate (古延州城門).