The New York Public Library Images collection has an amazing collection of the uniforms of Russian armed forces from 960 – 1900. Most are in color. All are useful.
For fans of the “Back of Beyond” theme in gaming, here are some color photos of the people and places of the Altai Mountains in the early 20th Century. The Altai are in east central Asia, where modern Russia, Mongolia, China and Kazakhstan come together.
For some great eye candy, here is a video of what bills itself as the largest scale model railroad of Russia in the world. The layout features many of that country’s iconic buildings and sites.