This is a great piece of work: a 3-D rendering of London in 1666. Very evocative.
gallery
Street Scenes of London From The 19th Century
A collection of images from 19th century London. Useful for all those steampunk and Victorian gamers out there.
Photos of China circa 1912 in Color
As the owner of a large number of Boxer Rebellion figures, I appreciate these photos of China in color circa 1912. My guess is that this is pretty representative of China over a long period of time, and will be useful for gamers from the Opium Wars through the revolution.
Atmospheric Wargaming Photos
Here’s an impressive set of Flickr photos with atmospheric Warhammer 40K images.