Northern Kentucky’s very own Notre Dame showcases intricate stained glass and the bones of saints.

Once one of the most polluted caves in America, now an environmental success story and a museum dedicated to caves.

You can climb to the summit of Black Mountain, as long as you sign the waiver.

Beautiful waterfalls grace a canyon visibly torn by a violent tornado.

This railroad overpass is said to be home to a murderous goat-man whose very legend has led to very real deaths.

Moonbows over Kentucky.

Prehistoric animals decorate this popular outdoor park.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The world's longest known cave system.

This vivid painted ceramic sculpture evokes the expansiveness of the prairie sky.

Once an ancient sea, this landscape of rocky ravines is filled with the fossils of ancient marine life.

This 100-foot tall bluff located in the western plains of Kansas overlooks a massive reservoir.

These otherworldly limestone formations jut out from the Kansas prairie.

A diverse, expansive nature preserve in northeastern Kansas.

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

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.

At a mile long, the Fort Madison Bridge is the largest double-decker swing-span bridge in the world.

Architectural elements and building materials for this house were transported from Salisbury, England.

This tiny site in Iowa, part of a patchwork national wildlife refuge, is home to ancient flora and fauna.

A wonderland of caves in eastern Iowa.

One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.