Erosion and time have created a naturally-formed water park.

Curious cave that stays a cool 56 degrees all year long.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

This schoolhouse for Black American children is one of the oldest remaining in southeastern Ohio.

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

A county library in rural Ohio houses one of the finest mineral collections in the world.