This terrific old map from 1891 shows the order in which streets were swept in Washington DC.
This terrific old map from 1891 shows the order in which streets were swept in Washington DC.
This is now the National Building Museum. What an amazing photo. Source: Shorpy
This is what a traffic jam looked like on 15th St. right next to the Treasury Department around 1915. These two photos were from the Library of Congress. Source: Library of Congress Source: Library of Congress