POPAYAN, COLOMBIA - NOVEMBER 19, 2017: Popayan is the center of the department of Cauca. It's called the White City because most of the houses are painted white. Popayan, Colombia. 19 November 2017 Shutterstock Image - POPAYAN, COLOMBIA - NOVEMBER 19, 2017: Popayan is the center of the department of Cauca. It's called the White City because most of the houses are painted white. Popayan, Colombia. 19 November 2017 - ID: 777932797