Rare recess caves fill this unbelievably beautiful Ohio park.

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

The largest earthwork effigy in the world.

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

Take a drunken tour inside the world's largest known geode.

Where beautiful signs live on forever.

A mysterious echo seems to defy the laws of acoustics.

One of the best examples of Art Deco architecture in the United States.

These massive mitts are made of 30 tons of devotional bronze.

An acoustic anomaly with a mysterious cause.

Museum dedicated to the struggles of the disabled.

This sprawling collection of saintly relics includes such fascinations as wood from the Cross of Jesus and threads from Mary's veil.

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

A collection of unique outdoor sculptures surounded by the beauty of nature.

The charming collection celebrates a small Ohio village's Finnish roots.

A collection of Witchcraft artifacts and occult paraphernalia started by the leader of the Long Island Coven.

Inside this wonderland of weird, visitors are treated to a collection ranging from skeletons to haunted artifacts.

The site of William McKinley's tragic assassination is only marked by an underwhelming boulder.

This vessel is believed to be the oldest operating fireboat in the world.

A miniature world of concrete and stone in Springfield, Ohio.

Superfans of The Shawshank Redemption can take a driving tour of most of the films real locations.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

One man's fulfilled dream of living on an artificial island made of recycled plastic bottles.