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15 Amazing Ohio Secrets You Never Knew Existed

If you thought you had Ohio figured out, think again.

It’s no secret that the Buckeye State is home to the Rock and Roll Hall of Fame, the best roller coasters in the world and the Pro Football Hall of Fame. But what you might not know is that Ohio is also home to the largest accessible glacial grooves in the world, abandoned subway systems and castles built by hand. Here are 15 amazing Ohio secrets you may not have known existed:

Did you know about all of these? Which ones surprised you? Share your thoughts (and other Ohio secrets you know) with us in the comments below!

April Dray
Ohio staff writer for Only in Your State, freelance journalist and blogger. Written word is my zeal. I love my cat and she tolerates me.