To Photographers, people generally interested in art/history:

I was lurking around the internet like I do every night I can't sleep and I came across this collection of photographs. Photographer Sergei Mikhailovich Prokudin-Gorskii conducted a survey of the Russian Empire between the years of 1909 and 1912 where he captured the daily lives of civilians and Russia's beautiful landscape. What makes these pictures significant is their color. Prokudin-Gorskii was able to capture a picture three times in three different colors to later combine them and form full color photographs. 

For more information and photographs, follow this link: http://www.boston.com/bigpicture/2010/08/russia_in_color_a_century_ago.html