This online exhibit from the Library of Congress (LOC) features a selection of photos by Sergei Mikhailovich Prokudin-Gorskii (1863-1944). In 1909-1912, and again in 1915, Prokudin-Gorskii undertook a photographic survey of eleven regions of the Russian Empire, traveling in a specially equipped railroad car provided by the Ministry of Transportation. Prokudin-Gorskii left Russia in 1918, and in...