The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

A notorious Route 66 eatery once frequented by Al Capone.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

A wax effigy of St. Valentine hides one of the saint's relics.

Famous church recognized for both its unique design and disciplined monks that live according to the Benedictine discipline.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

Giant granite rocks standing end-to-end like a train of circus elephants.

A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

This "little gallery in the middle of nowhere" is housed in a 170-year-old horse barn in the Missouri Ozarks.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

A sculptor's dream castle turned fantastical ruin.

This house was largely built out of hundreds of thousands of discarded glass embalming fluid bottles.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

North Carolina's finest examples of Native American pictographs have survived for 5,000 years.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

The remains of a World War II munitions factory still haunt the fields of this Twin Cities suburb.

Eight "Guardians of Health" protect this art deco water tower from pollutants and bacteria.

The only arched bridge made of stone on the entire Mississippi River.