Hwangnyeongsan Observatory

This guide to Hwangnyeongsan Observatory in Busan follows Bae Dori, one of roughly a hundred beacon soldiers who kept watch here for the kingdom of Joseon, and the strict signal system he served under: a single flame for calm nights, a rising count for danger, and the harshest punishment on the books for getting it wrong in either direction. It sets the scene before dawn on April 14, 1592, as he looks out over the harbor and has to judge, in an instant, exactly what he is seeing. Stand at the rail today and you're facing roughly the same stretch of coast he was watching that morning.