These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

An original apothecary from 1792.

The narrowest house in America is seven feet of pure spite.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

The only labyrinth within the city of Alexandria.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

The national park was once a plantation estate.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

A surprising, but overlooked example of geology in the middle of the nation’s capital.

The world's oldest soul food restaurant is also one of its best.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

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

The United States Capitol's former columns still stand.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

Two dozen pinball games hidden away inside a most unlikely location.

The Forest Service's surprisingly sophisticated collection of wildfire prevention art features America's most beloved bear.

A priceless collection of the Nation's cryptologic history.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

A local farm's collection of unusual structures from a now defunct storybook amusement park.