Take a step back in time and discover a glimpse into the past with this amazing photo of Pennsylvania Avenue in front of the Treasury Building. Discover more at the Historical Society of D.C. website.

Take a look at this fascinating photo from 1885! Uncovering the past, this photo from the Library of Congress shows a man and a boy in summer straw hats happily displaying some unidentifiable papers on F Street.

Take a look back at the Treasury Building before the Civil War in 1860 with a photo from the Library of Congress. Learn more about this historic building from this blog post.

Take a look back at the history of the Treasury Building in Washington, D.C. with this series of photos showing its construction in the 1860s. Explore the progress and final result of the building's design and architecture.

Stunning old image of the Treasury building during the Civil War.

Join us as we uncover the mystery of the 1940 Treasury Target Range in Washington, D.C. We'll explore the range's shielded lights, electrically operated targets, sound proofing, and more. Learn the history behind this fascinating piece of history.

Take a look back at the opening of the V Drive at Treasury in April 1919, thanks to GoDCer Jim for sharing this photo via Facebook. His cousin Catherine has it hanging on her wall!

Take a journey back in time and behold spectacular photos of the U.S. Treasury Department Building's construction in the 1850s! Plus, check out two other amazing photos of the building from 1890 and 1860.

Take a look at these beautiful photographs of Pennsylvania Avenue in Washington D.C. taken in 1905 by the Rotograph Company. See the eastward, westward, and Treasury Department views down Pennsylvania Avenue.

Take a detailed look at the Treasury Building in 1910 with this stunning photograph from the Library of Congress. Explore the history behind this iconic building and its role in US government.

Take a closer look at this photograph of the Treasury Department in Lincoln's time and see if you can spot any spectral presence. Explore the eerie picture to find out what secrets it holds!

Take a closer look at this incredible photograph from 1860 that captures the view of the Department of Treasury and Pennsylvania Avenue in Washington, DC. Click through for some amazing detail you won't want to miss!

Take a look back at F Street NW in Washington, D.C. circa 1908. Incredible photo and historic details are revealed in this shot. Click the photo to see the high-resolution version.

Take a look back at the unbelievable celebration of the end of World War I in Washington, DC. Read the Baltimore Sun report & see the Capitol Building fully lit up following the announcement of the armistice!

Exploring the O Street Pumping Station in Washington, D.C.! Learn about the 1911 amateur baseball championship, a lost boy found dead, and a mysterious case of a wandering man in a daze. Read the full story here.

Discover a rare collection of Civil War photographs from the Library of Congress, including a Sanitary Commission picture with the Treasury Department in the background.

Take a journey back in time with this "Then and Now" shot of the old Riggs National Bank across from the Department of Treasury. See the 1919 and today's shot from Google Street View. Follow @GhostsofDC on Twitter for more updates.

Intrigued by a reader's query, the Ghosts of D.C. investigates the history of a mysterious house in Woodley Park—Syracuse University's Greenberg House. From real estate mogul to nursing home, the house's past unveils tales of tragedy, dining, and a generous donation.