See where Bill Murray kidnapped a hapless Punxsutawney Phil.

This small-town opera house has appeared much more in national culture and history than its charming setting might suggest.

Though it's no longer a functioning train depot, this castle-like structure is an important piece of Oklahoma history.

Is this 47.7-mile stretch of highway the longest straight road in the United States?

The only remaining sod house Oklahoma built by a homesteader in 1894.

A half-size replica of the World Trade Center towers above Tulsa.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

The only fully-realized skyscraper built by the famed American architect, Frank Lloyd Wright.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

This storied music venue was once a tavern that housed an Italian Anarchist book club and prohibition parties; today it's a community space for artists and musicians.

A treasure trove of rare and exquisitely detailed antiques

A museum and apothecary garden devoted to the history of frontier medicine.

Home to the story of the outlaw turned funhouse mummy, Elmer McCurdy.

Bits and pieces from the ill-fated Donner Party's winter cabins.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Quite simply the largest tree in the world (by volume).

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Look closely and you’ll notice that the color changes a third of the way up the tower.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

The "lovely red Vega" of the legendary record-settling pilot.

Home to a vast and influential collection of Shakespeareana.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.