The entrance to this sinisterly named tunnel hides behind a Tim Hortons.

What is it about mushrooms that makes people wish they lived inside of them?

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

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

A castle built by an eccentric medieval enthusiast in suburban Ohio.

The angel of death appears to weep black tears at this grave marker.

Where beautiful signs live on forever.

Modeled after the labyrinth in Chartres Cathedral, this small-town Indiana memorial labyrinth sits half a world away.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

Bizarre and inspired combination store selling only two items: tires and bibles.

The remains of this visionary community can still be found much as it was a century ago.

The history of whiskey and all of its boozy glory, from Colonial days to modern American cocktail culture.

This plaque marks a place where one of Hollywood’s most famous dancers got his start.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

One Pittsburgh musician's decades-in-the-making memorabilia collection is on display at this rock-n-roll curio shop.

The aggressively banal name of this underground fortress of bureaucracy does little to evoke its truly surreal existence.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

The fastest transatlantic ocean liner sat abandoned in a Philadelphia shipyard for decades.