Potongmun
Potongmun is the western gate of the inner system of the walled city of Pyongyang. It was originally built in the sixth century as an official Koguryo construction, and was later rebuilt in 1473. It features a granite base topped by a two-story structure. The gate's structure was destroyed by American air attacks during the destruction of Pyongyang in Korean War, but was later reconstructed in 1955.
It is listed as National Treasures #3 in Asia.