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

This historic mansion was built as a symbol of love between a husband and wife.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

A small Richmond island dotted with the remnants of hundreds of years of history.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Outside the Department of Transportation, a collection of artifacts honors the history of how we get around.

This statue of the "father of television" stands prominently in the United States Capitol.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

The final residence of an educator, civil rights leader, and presidential advisor was also the first headquarters of the National Council of Negro Women.

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

An amazing example of early-20th-century architecture, this church features marble transported from Utah.

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

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

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

The iconic D.C. restaurant where the Cuban Missile Crisis was negotiated, now a Walgreens.

Built to defend Washington D.C. during the Civil War, this fort became a post-war nucleus for a thriving Black community.

This pun was simply waiting to come to life, and one defense contractor made it so.

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

An enormous warehouse filled with parade floats collected from over 50 years of patriotic celebrations.