Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

Washington D.C.'s most famous pianist, composer, and bandleader still tickles the ivories outside Howard Theater.

This poor little statue is the most vandalized memorial in Washington.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

This taxidermy horse was a Civil War hero.

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

The most decorated dog of World War I is preserved in the Smithsonian.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

Sip creative cocktails in the former vault of the Riggs Bank.

The house where John Wilkes Booth conspired with his co-conspirators.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

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

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

A diorama of the Civil War, fought by cats.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

The wooden octagon in which Huckleberry Finn and A Connecticut Yankee were born can still be visited in upstate New York.

All that remains of one of the Civil War's more deadly POW camps is a simple flagstone.

This formerly abandoned amusement park includes a classic carousel and a replica of Mark Twain's famous hut-like Elmira study.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.