A sprawling collection of books and manuscripts about ancient Greece that would have put their famed libraries to shame.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

Seventeen oak trees sprout from the roof and walls of this tiny chapel without any visual evidence of roots.

Poseidon? No one seems to know.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

An abandoned 1920s school with a mysterious history.

A historic coal mine that doubles as a museum and tourist attraction.

Ohio's 19th-century communist micro-society.

A small town museum celebrates the history of the Ohio county that produced Annie Oakley and other famous figures.

Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

When a guy acquired a free church, he hauled it away piece-by-piece to make it the tasting hall at his vineyard.

Now in disrepair, this 19th century station was a stop on of the famed B&O Railroad.

This Czar-funded, onion-domed, lavishly muraled Orthodox Church played a starring role in "The Deer Hunter."

Mussolini gave Cincinnati a bronze statue of Romulus and Remus suckling at a wolf's teats.

Memorials and tributes scattered across the university grounds remember a famous national tragedy of the Nixon era.

This recycled wax museum may be the only one that features John Travolta in a Bible scene.

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

Ghost stories surrounded this “castle,” the only structure from a huge mansion that was never built.

A record-size collection of wild-haired troll dolls tells the story of the mythical creature's roots in Scandinavian folklore.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

On a wall in Cleveland, Ohio find the story of a highly connected fictional community of organisms that created remarkable, lasting structures.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.