Sun World Halong Park

This guide to Sun World Halong Park in Ha Long traces the wager Sun Group made in 2016: pour hundreds of millions of dollars into building the tallest cable car towers on Earth along a coast once known only for junk boats and karst islands. It follows the previous record holder, an Austrian tramway that had stood unbeaten for half a century, and the ceremony where Guinness officials came to check the new towers' numbers.