During my third trip to Korea, one morning I reached the peak of Moranbong on foot and looked into the distance in all directions: The whole city of Pyongyang was bathed in the bright, rosy rays of the morning sun, with the Taedonggang flowing quietly like a blue ribbon, and magnificent buildings and a forest of trees, with the golden leaves of late autumn, greeted the eye everywhere. The formerly desolate eastern bank of the Taedonggang had become part of the city proper.
Source: wiktionary
The stone walls of the fortress (main defense line) were about 6 meters high and 3 meters wide with a length of about 9 kilometers. The square of the fortress was also quite broad; for example, the fortress on the bank of the Taedonggang river was about ten kilometers squared.
Source: wiktionary
The beer, named for the Taedonggang River, is a fairly full-flavoured lager that is swilled with gusto around the country. Getting hold of a bottle outside North Korea is tough, though export to China is not unheard of.
Source: wiktionary