No matter what the plaque under this massive legume says, this is not the world's largest peanut.

A museum honoring Oklahoma military service, where you can look into Hitler's mirror and see a Mickey Mouse gas mask.

A detached cement mixer has been transformed to resemble a relic from some obscure NASA mission to Oklahoma.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

Over 50 historic windmills whir away at this outdoor museum.

Circus cemetery for all the “showmen under God’s big top.”

One believer transformed a local curiosity into proof of Vikings on the Great Plains.

When you can afford only half a road, you build only half a road.

The fairy tale castle of the "fairy-tale king."

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An eerie, derelict amusement park in Berlin.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

On the Oregon coast there is a natural hole that seems to be draining the sea.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

A bizarre house filled with an astounding array of collections.

A monument marks the beginning of the longest north-south road in the United States.

The largest tidal whirlpool in the Western Hemisphere.

A giant telephone commemorates the last "crank" call ever made in the U.S.

Trinkets and toys lovingly handmade by maximum security prisoners.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

A century after his death, this covered bridge still calls to mind the plein air painter who loved it.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.