In April 2013, photographers Nico Krebs and Taiyo Onorato, who have been working together for a dozen years, loaded up their 1987 Toyota Land Cruiser in Switzerland and headed east. They'd already roughly traced their route by running a finger across the map of Eurasia to their ultimate destination, Ulan Bator, the capital of Mongolia. It felt like setting forth on an expedition to the mystical realms of the East: Eurasia, Central Asia, the foothills...