The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

Drink among marionettes at this pub inside a historic puppet theater.

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

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

The only Civil War battle in Washington D.C. took place near this highest natural point in the city.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

The ruins of a town wiped out by the second-largest earthquake in recorded history.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The highest point in Virginia can only be reached by passing through ponies and flowers.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

Near-constant high winds deform the trees on Spruce Knob, the highest point in West Virginia.

The highest point in Maryland is only accessible by hiking through another state.

You can climb to the summit of Black Mountain, as long as you sign the waiver.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

A tribute to the beloved, kind-hearted "homeless mayor" of Silver Spring.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.