Where pardoned turkeys once spent their all-too-brief final days.

Hear, smell, see, taste, and touch history at this immersive Civil War hospital.

The Decoy Capital of the World.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

Time travel with sweets across history at this research-based candy store.

The innocent intentions of this monument are somewhat lost in the sculpture's muscled imagery.

Also known as the Founding Church of Scientology.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Perhaps the most scandalous statue of America's first president.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

One of the oldest train stations still standing in Virginia played a vital role during the Civil War.

The most historic church in Fairfax County played a role in the creation of the American Red Cross.

The first green space constructed on an elevated viaduct.

How did a French journalist’s grave become the sexiest statue in the cemetery?

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

The vast, legendary catacombs hold secrets much stranger than stacked bones.