What a beautiful photograph. This was taken by the Rotograph Company in 1905 with a eastward view down Pennsylvania Avenue towards the Capitol.
Source: Library of Congress
Below is the opposite westward view down Pennsylvania Avenue from the Capitol.
Source: Library of Congress
And here is the final Rotograph image we came across, showing the Treasury Department, looking down Pennsylvania Avenue.
Source: Library of Congress
Did you notice the swing set in the lower right corner?
I wish stores still had awnings. in many important respects, like wearing hats and buying in bulk from dry goods stores, people were so much more sensible than we are today