Nubra Valley, also known as Valley of flowers via Khardungla, the highest motorable road in the World, (18,380 ft). to Nubra Valley, also known as Valley of flowers via Khardungla, the highest motorable road in the World, (18,380 ft). to Nubra Valley, also known as Valley of flowers via Khardungla, the highest motorable road in the World, (18,380 ft).