At Dolgoji station line 6 where we always take as a transfer station whenever we go to campus or school, there is this small exhibits on the North Korea and the history of Korea-South dynamic (to tone it down!) relation.
Passers-by could just see and read the inscription or explanation about the pictures as they are displayed.
It's one of the ways Subway line 5,6,7, 8 gives extra service to Seoulites.
