The largest riverfront opening cave in the Ozarks.

An outsider art studio that created a piece of work so popular they had to turn mainstream.

A home designed to be on the cutting edge of comfortable, low-cost living.

An extravagant western hotel where every floor is the "ground floor."

From a canyon-like gorge, more than 20 million gallons of water emerge every day, while a smaller spring drips down, creating the illusion of an endless, gentle waterfall.

The largest spring in Northwest Arkansas is also home to a sprawling botanical gardens and a historically significant bluff.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

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

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

The lowest point in the state of Illinois, at the confluence of the Mississippi and Ohio rivers.

A 22-foot stainless steel quilting needle pays tribute to a local connection to fiber arts.

A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

An enormous natural sandstone bridge in Kentucky.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

One man's vision and a labor of love of many.

Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

This Indianapolis landmark offers a secret panoramic view of the city. 

Nature and art meet in this curvy creation

Along this stretch of Indiana roadway resides a giant insect composed entirely of scrap metal.

This former Indiana quarry has been transformed into a park and SCUBA site where divers can explore the drowned mining equipment.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

This log cabin gallery is one man's gnarly, hand-carved tribute to his favorite trees.