This fantastical waterfall is hidden in a cave located in a cracked cliff.

Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Dad jokes and wordplay abound in this comic fake cemetery.

At Oklahoma Panhandle State University, a plaque marks a place once known as No Man's Land in the linear world and the fictional Kcymaerxthaere as well.

Its incredible collection preserves 170 years of sewing machine history.

The Quapaw tribe supplies the meat and produce in this Oklahoma casino restaurant.

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

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

One of the largest Masonic temples in the world, created at the height of the oil boom in ostentatious style.

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

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

Over 50 historic windmills whir away at this outdoor museum.

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

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

Only museum dedicated to women pilots, with personal artifacts from Amelia Earhart and other aviatrixes.

A former chicken restaurant that doubled as a speakeasy is now a quirky home full of wonderfully strange traditions.

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

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

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

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.

An acoustic anomaly with a mysterious cause.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.