This famous architect died before finishing his last building. Then his son stepped in to help

The final project of César Pelli—the architect behind major buildings such as San Francisco’s Salesforce Tower, Kuala Lumpur’s Petronas Towers, and Los Angeles’s Pacific Design Center—has been completed. But unlike these large-scale skyscrapers and monumental buildings that catapulted him to fame, it’s a modestly sized space that melts into the landscape. For Pelli, who died in 2019 at the age of 92, it’s a poignant final work for both its location and for its subject matter. Located in northwestern Argentina,...