Hidden beneath the streets of London is a secret subway that only carried mail.

Residential building on the Regents Canal is a breeding ground for creativity and innovation.

One part local history, 99 parts gruesome haunted house.

A 120-year-old legend concerning an empty circular patch in the North Carolina woods.

Ruins of an American Civil War iron forge still survive today.

A curious blend of taxidermy, antique tools, creationism, and a purported antediluvian rock.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

This small museum dedicated to the painful memory of segregation is essentially a time capsule.

A mailbox that saved a nature reserve.

Divinely-inspired village houses 6,000 dolls, plus strange and lovely outsider art.

This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

Dental instruments from the illustrious history of American dentistry.

Paths are maintained, but trees have taken over plots.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

Twenty-eight years after this local landmark was washed ashore by hurricane Hugo, it was washed away by hurricane Irma.

One of the oldest living oak trees in the Southeast.

This natural spring not only claims to heal the wounded but it has also been willed to God.

The world's largest fire hydrant is supposedly tornado-proof.

Amazing pre-Civil War ruins alongside a shallow, rocky river that hosts beautiful (but endangered) lilies.

A psychological self-portrait in the form of a giant, segmented head.

The first statue of Christ sleeping on a bench in the United States confused its affluent parish.