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

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.

Once the smallest park in the national system.

Dad jokes and wordplay abound in this comic fake cemetery.

There are no bodies inside these stone coffins. And there never were.

Claims to be the "World's Highest Hill."

What was once a summer home next to a waterfall has now become littered with graffiti and children in swimsuits.

The final resting place and once home of the Bandit Queen of the West.

The highest point in Oklahoma used to be a lawless outlaw's paradise.

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

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

An acoustic anomaly with a mysterious cause.

World's smallest skyscraper, the product of a remarkable con.

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

This little slice of old Jerusalem in Oklahoma is the evolution of a 90 year old passion play.

A peculiar forest that was handcrafted for government experiments.

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

The largest collection of political commercials in the world.

The largest land animal skull ever discovered.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

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

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