The world's largest man-made underground caverns offer unparalleled underwater wonders.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

Less a museum than a bizarre fantasy world created by artists and engineers.

This historic early-20th-century building still boasts some of its original features.

The oldest house in Lindsborg, Kansas, includes some fascinating inscriptions.

The first "Hut" was actually a small brick building.

The holiday spirit lingers year-round in the "Christmas City of the High Plains."

This Wild West attraction is probably more fiction than history, but that doesn't mean it's not awesome.

A mysterious and terrifying public art goblin seemingly meant to inspire local legend.

Curious rock formations in a tiny Kansas state park.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

A landscape of massive spherical boulders are the main attraction in this Kansas State Park.

Self-built house and sculpture park where the creator can still be seen in a glass coffin.

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

Massive still life just off the highway in Kansas.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

Home to Hollywood history and a very special salt crystal.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

This recently restored timepiece has stood all around Kansas City.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

Community bookshelf of 25-foot-tall book spines.

Underneath downtown Lincoln resides a network of caves that was also the city's first brewery.

Curious cave that stays a cool 56 degrees all year long.