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

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Washington's iconic carousel has a nice piece of Civil Rights history.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

Go take a picture with the inventor of the daguerreotype photographic process.

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

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

Largest Roman Catholic church in North America.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

A historic neighborhood church is reborn as a psychedelic arts collective.

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

The iconic statue was moved to a new spot overlooking the James river after several years as a mascot for the local baseball team.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

This statue is dedicated to Grace Sherwood, the last person in Virginia to be convicted of being a witch.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

The only recreation of William Shakespeare's indoor playhouse.