21st and C St. NW looked very different back around 1924 (mislabeled by the Library of Congress as 1916). The photo below shows the Potomac Park Apartments. This is the location of the Department of State today.

Potomac Park Apartments
Potomac Park Apartments

Source: Library of Congress & Shorpy

Tom founded Ghosts of DC on January 4th, 2012 as a blog to uncover the lost and untold history of Washington, D.C. He has lived in the city for over a decade and loves exploring every corner of the District.