Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

These banned cigarette vending machines now sell little pieces of pocket-sized art.

This might just be the TARDIS of bookstores.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

This medieval village/restaurant perpetually celebrates the year 1376.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

Wine bottle sculpture with a ship's stateroom inside.

An abandoned water sports stadium that has become a haven for graffiti and decay.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

An eerie, decaying ghost town destined to fade into the forest.

Jule Körner's house full of bizarre architectural details.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.