Walter Ruttman's 1927 silent film "Berlin: Symphony of a Great City" in its entirety (this is well worth the watch - think Jack London with a film crew and the "eye" of Jacob Riis.

First photograph is a still from Ruttman's film, the second is by Riis and titled "Downtown Morgue" 1890 and the last, also by Riis, is titled "Mullen's Alley" from 1888.