This massive airship factory is so large that it has its own indoor weather.

The 25th President's marble casket can be visited in this classical Ohio tomb.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

Ohio's 19th-century communist micro-society.

A giant lumpy candle serves as a beacon for this highly scented pit stop.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

This tower-tomb honors a president who only held office for a little over a month but dedicated his life to his country.

This small museum is kept in a house that was integral to the genesis of Uncle Tom's Cabin.

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

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

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

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

The largest ancient burial mound in Ohio.

The largest earthwork effigy in the world.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

A real flying saucer, contracted by the U.S. Air Force.

A slab of sandstone covered with mysterious 1,000-year-old rock carvings from a vanished North American culture.

Rare recess caves fill this unbelievably beautiful Ohio park.

This pair of eccentric Ohio castles were built by a pair of brothers who wanted to bring a bit of class to the Ohio wilderness.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

This presidential tomb was not dedicated until years after Harding's death due to personal controversy.

An office built to look like a giant basket.

Bison, America's national mammal, are staging a slow comeback in Ohio's prairie parkland.