When it comes to handsignals (and colonialism) rock always beats scissors.

Surrounded by a verdant garden and a backdrop of ivy, a monument to beloved poet Khalil Gibran stands outside of the Lebanese embassy.

A bas relief commemorates the "Nuns of the Battlefield" who cared for soldiers on both sides of the conflict.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The 28,000-year-old specimen is remarkably intact.

This Masonic lodge was the first major private building to be constructed in Washington, D.C. after the Civil War.

This unassuming passageway played a key role in one of the most important events in U.S. history.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

The boulder on which Alexander Hamilton laid his head after a deadly duel can still be visited on the New Jersey coast.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

A wooden theatre that remains the heart of a charming Victorian-era New Jersey enclave.

Walk over a 150 year old manhole.

New York City's only wildlife rehabilitation center treats more than 3,000 feathered and furry patients each year.

The shop where the girl who inspired the beloved character once bought sweets is now a book-themed commercial curiosity.

The site of a legendary battle immortalized in medieval literature.

A preserved trolley track that was transformed into a museum of transportation.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

Who knew the Devil's domain was a hot spot for tubing?

Baltimore's first skyscraper may be home to the inspiration behind pulp fiction's most celebrated bird.

One artist’s scheme to expand museum viewing hours into the evening led to the illumination of an entire city.

Once America's tallest structure, now a Baltimore landmark.

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

The little-known final resting place of one of America's greatest writers.