Dadaepo Beach

This guide to Dadaepo Beach in Busan starts with a puzzle: how an empty slab of pavement became the world's largest fountain. It walks through the buried plumbing beneath a circular plaza ringed by walkway, the twenty-nine hidden jets, and the March 2010 opening that landed it in the Guinness Book of World Records. From there it turns to what the fountain becomes after dark, when operators run through dozens of songs a month and the jets cycle through shapes timed to the music. Stand at the plaza's edge as evening falls to catch the moment ordinary ground stops pretending to be nothing.