Pennsylvania Avenue from the Capitol - 1893
(use scroll bars to view whole photo)
Photo from Robert Reed's Old Washington, D.C. in Early Photographs 1846-1932
Courtesy of Dover Publications, Inc. New York

The tower of the pyramidal roof at the left (along the tear in the photograph) marks the Baltimore & Potomac Railway Terminal, now the site of the National Gallery of Art.  At the upper right are the Patent Office and, below and slightly to the right, Old City Hall.