The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

The trials and tribulations of marking Poe's grave.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

A winding district gerrymandered into the shape of a mantis.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

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

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

An old slave lookout in Cuba's historic sugar cane fields.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

A portal into the bricked up canal that runs through the heart of Washington D.C.

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

The National Park Service’s best-kept secret with views that rival any in D.C.

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

A terrace reminiscent of Rome's Spanish Steps is tucked away in a little park in Washington, D.C.

After James Madison's death, his wife and former First Lady Dolley Madison lived in this yellow building near the White House.

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