Seoul features one of the world's most
advanced transportation infrastructures that is constantly under expansion. Its
system dates back to the era of theKorean
Empire, when the first streetcar lines were laid and a railroad linking Seoul
and Incheon was completed. Seoul's most important streetcar line ran along
Jongno until it was replaced by Line 1 of the subway system in the early 1970s.
Other notable streets in downtown Seoul include
