CNN  —  Mindfulness is one of the most popular concepts in the wellness industry right now — there are hotels, spas and classes all dedicated to its pursuit. But the Himalayan nation of Bhutan is taking the idea 20 steps further by building an entire mindfulness city. Gelephu, in southern Bhutan near the border with India, has been selected as the site of this city, although details have been scant about the project. Until now. The Bjarke Ingels Group architecture firm has unveiled its design