"Group of Jewish Children with a Teacher"
"Full-length profile portrait of a woman, possibly Turkman or Kirgiz, standing on a carpet at the entrance to a yurt, dressed in traditional clothing and jewelry"
"Bukhara Bureaucrat"
"Girl with Strawberries"

Incredible color photography by Sergei Mikhailovich Prokudin-Gorskii, taken between 1905-1915. He was looking to educate schoolchildren on the history, culture, and modernization of the Russian Empire.

Definitely read more about his technique here because it's pretty revolutionary. Also, here is more about his background.