A tall smoke stack and boarded-up buildings are all that's left of the pioneering plant.

On a dusty county road sit the ruins of a ghost town's abandoned church.

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

A larger-than-life monument to the overlooked women who braved Western expansion and broke down societal barriers.

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

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

A funhouse dummy that turned out to be a real life mummy, Elmer McCurdy is an urban legend come true.

The site of the one and only battle of Lord Dunmore's War.

This abandoned horse racing track was an exercise in hubris from its inception.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

A mysterious "wedding cake" castle in the middle of the urban desert.

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

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

This historic Civil War church has survived over a century of racial turmoil but still stands as a reminder of the town's roots.

A small "palace" and museum made of, and devoted entirely, to salt.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

No matter what the plaque under this massive legume says, this is not the world's largest peanut.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

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

A grove of colossal man-made flowers built to collect the sun's rays.

The only international border marker within the United States.

An enormous goose sits atop this nest-shaped home.

Origin of the blue-skinned Fugates of eastern Kentucky.