Explore a Civil War-era map of Fairfax County, Virginia, copied by J. Paul Hoffmann and approved by S. Howell Brown in 1864. Discovered at the Library of Congress.

Discover the remarkable story of Col. Ulric Dahlgren, wounded in the Civil War and commemorated with a plaque at the Navy Yard. Learn how his leg ended up in a parking garage and the history of the building since then.

Take a look back in time with this detailed photograph of the Union encampment at Centreville during the winter of 1861-1862. Click on the photograph for more information and to view the original source.

On April 15, 1865, President Abraham Lincoln was assassinated. On the same day, The Evening Star newspaper was published, featuring a "Special Notice" that is as interesting as anything that could be published today. Take a look at the newspaper, the day after the assassination.

Take a look back in history with this old map that shows Jubal Early's Rebel attack on Washington. See the plan of the attack and learn more about this important moment in history.

This amazing image shows the Confederate Ironclad Stonewall anchored in Washington in 1865, with the Capitol Dome visible between the masts. Learn more about the ship and its history with this blog post!

Take a look at this awesome Civil War photograph of a haymarket in Washington, DC. See the Smithsonian in the background? If not, let us know what those buildings are! Source: Library of Congress.

Take an historic journey to Camp Brightwood on the Cultural Tourism D.C. Heritage Trail. Learn more about this Civil War landmark at 5704 Georgia Ave. NW.

Get a glimpse of history with this powerful stereographic card taken during the Civil War at an Alexandria slave pen. Explore the emotional image and learn more about this significant era.

Take a look at the tragic history of Falkland, Montgomery Blair's home, which was burned by Confederate troops or camp followers on July 12th, 1864. Read more on our post about how Silver Spring got its name.