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

Evidence from a brutal 1880s murder is on display at this former infirmary house.

In northern Ohio, the glorious past of America's trains is on full display.

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

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

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

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

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

An office built to look like a giant basket.

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

These beautiful wineries were at the center of Lake Erie's "grape belt" back when the Midwest dominated American wine production.

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

The largest ancient burial mound in Ohio.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

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

This magnificent Cincinnati graveyard is also a popular public park.

Deep scars on the earth left by the Ice Age.

Rare recess caves fill this unbelievably beautiful Ohio park.

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

The largest earthwork effigy in the world.

Take a drunken tour inside the world's largest known geode.

Part of a WWII submarine is lurking outside the Washington Navy Yard parking lot.