An unusual, super-sized grocery adventure awaits in an Ohio suburb.

All that remains of a gigantic earth-moving machine.

The largest earthwork effigy in the world.

The largest ancient burial mound in Ohio.

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

The permanent home of Elektro, the celebrity automaton of the 1939 World's Fair.

The remains of a massive blast furnace in what was once one of the country's largest iron-producing regions.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

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.

Rare recess caves fill this unbelievably beautiful Ohio park.

The mounds at this site were reconstructed with the help of archaeologists and historians.

Featuring one of the most complete and original collections of Presidential memorabilia, this is the site of the last front porch presidential campaigns.

This moving cemetery sphere is a slowly rolling stone.

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.

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

Circleville is seriously smitten with this giant gourd.

A gas station has taken the place of the home of the 19th American President.

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

Artifacts fill the old headquarters of the hugely influential political movement to ban alcohol in the United States.

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

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.