Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

This unassuming passageway played a key role in one of the most important events in U.S. history.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

Amid the sprawling Defense Intelligence Agency Headquarters is one of Washington's least accessible museums.

Helen Keller once broke ground on this historic center for the study of technologies to benefit the hearing impaired.

Washington's top-secret Cold War-era doomsday communications tower is located in a small neighborhood park.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

This robust fence in front of a historic Georgetown home is likely made from hundreds of recycled Revolutionary War firearms.

This sandwich shop has a century-old elevator behind a sheet of plexiglass.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

When it opened during the final years of the embargo, all the drinks and cigars were free.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

A museum dedicated Germany's favorite drink and most well-known festival.

A priceless collection of the Nation's cryptologic history.

The United States Capitol's former columns still stand.