Travel on Subway Line Number 4!

Today I’d like to introduce some variable places to go by taking subway line 4. It was built in 1985. Line number 4 also built for maximize the usage of line number 2. Line number 4 connects from Danggogae Station (당고개역) to Oido Station (오이도역). It connects the northeast part of Seoul to Gyeonggi Province […]