The vast underground city of Derinkuyu descends 280 feet and once sheltered 20,000 people in an intricate network of tunnels and chambers. In this edition of Huge! explore Derinkuyu, a hidden ...

Concept art of one of Bhutan's new bridges. The city is designed to draw back some of Bhutan's disappearing workforce. Bjarke Ingels Group. The city of Gelephu, which sits along Bhutan's southern ...