A collection of beautiful crystals shaped like freshly plucked roses.

The largest cattle market on earth holds live auctions open to the public every week.

This 1930s-era Route 66 Tulsa landmark was moved, restored, and filled with neon.

An indoor botanical garden for tropical plants looks like a giant cylinder lying on its side.

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

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

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

Located along historic Route 66, this former gas station has been restored and converted into a museum filled with vintage motorcycles.

One of New York's most iconic authors is strangely honored by this Oklahoma park.

A 50-foot-tall replica of the infamous lamp from 'A Christmas Story' illuminates this small town.

An Oklahoma museum that celebrates the history of the "Mother Road."

Once the smallest park in the national system.

This unique landscape is the only place in the world to dig for hourglass-selenite crystals.

An oil baron's wild paradise and the winner of an ill-fated air race.

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

This ostentatious Italianate palace of an Oklahoma billionaire is filled with several themed mini-museums.

This little slice of old Jerusalem in Oklahoma is the evolution of a century-old passion play.

This historic theater's pipe organ still accompanies silent films just like it did in 1929.

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

The largest land animal skull ever discovered.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Standing at 21-feet tall, this space cowboy adds to the legacy of Route 66's muffler men.

These massive mitts are made of 30 tons of devotional bronze.

Once in disrepair, the house where the 1983 film was shot has been restored and turned into a museum.