A memorial for an outsider theorist who believed that the planet is actually hollow.

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

The final resting place of the most famous sharpshooter.

Faces carved into the cliffs create an otherworldly walking trail.

Where beautiful signs live on forever.

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

This old steel industry company town has a tradition of parking cars on the sidewalk so people can walk in the narrow streets.

A museum dedicated to exhibiting remarkable outsider art.

A museum that houses the world's largest collection of ventriloquism dummies.

The site of the one and only battle of Lord Dunmore's War.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

This steamer is known as "The ship that built Cleveland."

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

This campus museum commemorates a national tragedy.

At the center of this cemetery stands a 2,000-year-old burial mound of the Adena culture.

This historic Ohio bridge is adorned with fanciful locks left behind by loving couples.

Home to several unusual artifacts, including a huge painting of George Washington.

One of the few places where you can explore a 1918 paddlewheel steamboat from stem to stern.

Hundreds of 19th-century characters descend upon an Ohio town every autumn.

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

One of the last few period-correct, hand-operated canal locks in the country.

Just outside the Ohio Supreme Court sits a testament to justice.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

One of the largest underground systems runs under Canada's largest urban center.