North Korea’s smallest market?
Sometime between 2015-5-25 and 2016-6-27 a new candidate for what may be North Korea’s smallest formal market (시장) was built in remote Komsan-ri, Hyesan City, on the Chinese border.
The Market is approximately 17m x 12m and consists of a central table and possible vending space around the perimeter.
There may be a smaller formal market somewhere in the DPRK, but I can’t think of one at the moment.

