A cosmic pit stop just beyond the notorious Area 51.

Founded by the famed children's book artist, this museum spreads an appreciation of the arts through picture books.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

The 55-pound trichobezoar was removed from the stomach of a cow.

A roadside attraction filled with an astounding array of gloriously wacky vehicles.

This unassuming layer of clay boasts an out-of-this-world origin story.

Over 50 historic windmills whir away at this outdoor museum.

A clear blue swimming hole with hidden caves, still unexplored.

The top of a giant mesa, just outside of Amarillo, appears to float in the sky above.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

This tiny patch of arid sand sits in one of the greenest states in the United States.

This massive home was constructed by one of the greatest conservationists in Colorado history.

The only free-standing, vertical sundial in the US was keeping standard time before it was even invented.

This natural spring not only claims to heal the wounded but it has also been willed to God.

With over 340,000 artifacts and counting, there is something for everyone, often called the "Smithsonian of the West."

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

In the middle of a New England forest sit the crumbling ruins of World War II-era ammunition storage bunkers.