Landmark 81

This guide to Landmark 81 in Ho Chi Minh City centers on the engineers' test for a tower built to sway on purpose in the wind: a glass of water set on the floor of an elevator car climbing hundreds of metres into the sky. It follows the Swiss and British crews who had to teach local workers from scratch, floor by floor, on a project even its own director had never attempted before. Stand near the terrace railing on the eighty first floor to feel the real wind the building was designed around.