An abandoned quicksilver mining town surrounded by the Big Bend parks.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

A Texas-sized particle collider that was abandoned due to its Texas-sized budget.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

A painfully obvious spy house sits right across the street from the Russian Embassy.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

Mysterious glowing orbs float through the desert night.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

Graffiti, cars, and religion combine to create this jungle of scrap in the Nevada desert.

Railroad came. People came. Railroad left. Town died.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A whimsical village of unique treehouses resides in a Washington forest.

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