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

This pair of eccentric Ohio castles were built by a pair of brothers who wanted to bring a bit of class to the Ohio wilderness.

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

Bison, America's national mammal, are staging a slow comeback in Ohio's prairie parkland.

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

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

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

Though technically an illegal structure, this eclectic DIY apartment complex is beloved by its residents.

The writing studio of an American adventure author, built in the style of a medieval castle.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

A house built from trash known as the poor man's Hearst Castle.

The Zalud family experienced a number of tragedies in one decade, giving rise to rumors that the 19th century house is haunted.

This tiny cluster of abandoned buildings looks like the future of the ghost town - today!

The mysterious round rocks of Schooner Gulch.

Four hundred granite steps were built into this massive rock by the National Park Service.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

Quite simply the largest tree in the world (by volume).

Despite being a perfectly pleasant place to be, Loyalton can't seem to attract any visitors.

Beneath a Virginia City bar is the entrance to an abandoned gold mine.

An abandoned cyanide mill is now a haunting magnet for graffiti and illegal parties.

The oldest orange tree in California spawned a generation of citrus farmers.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

The beauty and the beast of hydraulic mining is on full display at this California Historic State Park.