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

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

A strange mark in the stone fence of a cemetery fabled to have been made by the Devil himself.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

One of the few brewers in the U.S. experimenting with hop-free beers.

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

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

An adorably sweet display of sculpted Precious Moments figurines.

Thousands of small machines line the shelves of this personal collection which definitely delivers on its name.

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

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

An acoustic anomaly with a mysterious cause.

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

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

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

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

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

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

Nature's biggest mammal swims in landlocked Oklahoma.

Former abode of notable poet, complete with literary references and stories of ghosts.

America's oldest archaeological site or a muddled case of wishful thinking.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

A stone memorial erected for New Hampshire's only convicted witch.