These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

Bad farming practices caused this unnatural natural wonder.

A rough granite monument marks the spot where Europeans first caught sight of the San Francisco Bay.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

This divisive system of turtle tunnels was built to save animals stranded after a highway split a lake in half.

How Quincy, Florida became the richest town per capita due to one man's shrewd business acumen and taste for fizzy drinks.

This Florida arena, once host to "the fastest game in the world," has sat empty for 25 years.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

A short hike into the mountainside forest reveals a decaying 1890s town.

An art deco ice cream shop covered in vintage train station tiles.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

An office built to look like a giant basket.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

Where beautiful signs live on forever.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.