I keep meaning to point people toward Shorpy. It's an archive of extremely high-resolution photos, updated daily. The photos are all American, dating from 1860 to 1960 or so. The site owner gets them from his personal collection and from government archives. As noted, the photos are extremely high resolution, and record intriguing details of daily life or forgotten historical events.

A recent example. Click through and scroll around the photo - the Dan Quayle spelling of "potatoe", the bored floor walker peering through the window, the array of odd products, the discarded envelope on the sidewalk, the no-slip flooring in front of the sort... and of course the sort of nerdy-cute/plain doughnut girl!
A recent example. Click through and scroll around the photo - the Dan Quayle spelling of "potatoe", the bored floor walker peering through the window, the array of odd products, the discarded envelope on the sidewalk, the no-slip flooring in front of the sort... and of course the sort of nerdy-cute/plain doughnut girl!