Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

An old dining hall now serves up ghost stories for lusty locals.

A beautiful final resting place with some surprising residents.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

The floor-to-ceiling collection in an old factory is a unique alternative to stuffy galleries.

This New York estate was designed to resemble a medieval Scottish castle.

Abandoned rock quarry now a haven for mountain bikers and hikers.

The quarry was abandoned over 100 years ago, after a massive ammunition explosion ended in tragedy.

A memorial to the 1913 tragedy that helped protect the workers of the future.

A gazebo that inspired the fifth episode of the "Twilight Zone" still stands in the creator's hometown

The final resting place of Harriet Tubman and other famous historical figures.

A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.

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

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

An abandoned asylum where patients have been forgotten but their possessions remain.

The library of every book lover's dreams.

Pluto is still considered a planet in Ithaca, New York.

All that remains of one of the Civil War's more deadly POW camps is a simple flagstone.

This art center is way beyond your average pumpkin-carving operation.

This exhibit allows visitors to wander through the interior of a replica Ice Age glacial cave.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

The handsome statue is a tribute to the post riders who traversed 52 miles of tough Arizona terrain.

Inside this garden, visitors are offered a glimpse into how inhabitants of the region survived centuries ago.

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.