If you’ve ever driven on a Korean expressway or taken a bus across the country, you’ve probably seen them without even thinking twice: long pastel lines of pink and green painted across the road. They appear at major junctions, interchanges and tollgates — quiet, unassuming and strangely intuitive. Most people follow them automatically, often without realizing they’re doing it. But have you ever stopped to wonder what they are or why they exist? In this week’s Walk and Talk, let’s explore traffi

121K views · 944 reactions | Kochia scoparia plant, known locally as...