Commuters passed above it for decades without knowing what lay beneath. Now, a 335-meter underground passage in the heart of Seoul has taken on a n...

A 335-meter-long underground passage that remained closed beneath central Seoul for more than four decades opened Monday as a cultural venue, launching with an

Commuters passed above it for decades without knowing what lay beneath. Now, a 335-meter underground passage in the heart of Seoul has taken on a n...