Bits and pieces from the ill-fated Donner Party's winter cabins.

The massive machine creates cracking displays of indoor lightning.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

A unique bridge with an equally unique view.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A house and yard adorned with bizarre concrete sculptures in a Milwaukee suburb.

This was once the largest four-sided clock in the world (yes, even bigger than Big Ben).

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

A six-story-tall golden pyramid, surrounded by a moat.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

This mysterious chalk figure of a horse has been recreated and restored for more than a century.

This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

England's most notorious suicide spot.

Famously misunderstood wonder of the ancient world

Hidden in plain sight, this creepy sculpture watches from above.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."