Inside Duolingo’s stunning new NYC office, where employees get to choose where and how they work

In many ways, language-learning app Duolingo’s new office in New York City doesn’t look like an office at all. Instead of a lobby, there’s a white-wall art gallery exhibiting 6-foot-tall digital paintings of the app’s characters (each language has its own avatar) and a sculpture of Duo, its owl mascot, elevated on a plinth in the center of the room. Walk through the gallery, and you’re in a minimalist coffee bar with an emerald-green banquette and dozens of pothos plants cascading...