The last of nine massive kilns that produced many of the red bricks for buildings in Washington, D.C. and northern Virginia in the early 20th century.

This tree is a living witness to the beginning of the Civil Rights Movement.

This twice-relocated "Usonian" home is among the smallest built by master architect Frank Lloyd Wright.

The rogue roots are gradually consuming some of the historic marble grave markers.

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

The FBI's urban training course may have the highest fake crime rate in the world.

Please don’t anchor your boat onto the Department of Defense’s underwater data cables.

This simple stone memorial remembers a secret, Geneva Convention-defying interrogation base from WWII.

This sprawling farm was once a Cold War-era hideaway for the nation's top diplomats.

The oldest arched-covered bridge in Virginia has truly withstood the test of time.

Developed by focused shutterbugs, this museum exposes visitors to more than 6,000 different cameras.

A bunker "with enough U.S. currency to replenish the cash supply east of the Mississippi" in the event of nuclear war now protects nitrate film.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

An extensive, if one-sided, history of U.S. law enforcement's war on drugs.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

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

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

One of the last active volcanoes on the Eastern seaboard.

A quintet of history museums make this Virginia graveyard as much a resting place for funereal history as it is for people.

An original apothecary from 1792.

This handcrafted, old western-style town is filled with deserted cars, retired movie props, and other forms of Americana.

An off the grid woodland retreat that harkens back to days long forgotten.

An unassuming nature trail winds through dozens of tiny houses built for the wee people.