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

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

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

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

Nature's biggest mammal swims in landlocked Oklahoma.

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.

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

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

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

A museum packed with instruments, lyrics, and other mementos of the American folk icon.

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

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

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

The oldest orange tree in California spawned a generation of citrus farmers.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

Just a man taking his prehistoric pet for a stroll.

Population: 1.

A small town built on an abandoned airfield has former runways as streets and a bar and grill in an old airplane hangar.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Hidden behind Lincoln's head is a chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

Calidum et Deliciose Succosum!

An abandoned boat that's been stranded mysteriously for decades.

It should come as no surprise that the world's largest artichoke lies in the town that calls itself the "Artichoke Center of the World."