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

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

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

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

A home designed to be on the cutting edge of comfortable, low-cost living.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

This former mining town was named the most toxic town in America.

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

This small-town museum is dedicated to the original western movie mega-star.

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

Nature's biggest mammal swims in landlocked Oklahoma.

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

Sid Vicious famously punched a hole in the wall of this iconic music venue.

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

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

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

Songwriter Leon Russell transformed this church into a recording studio used by many legendary musicians.

One of the best examples of Art Deco architecture in the United States.

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

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

This abandoned, windowless concrete block is one of the strangest buildings in Tulsa.