A flat slab of stone perched hundreds of feet above the Gasconade River in the northern Ozark mountains.

Genesis of modern hydroelectric power.

This record-setting hydraulic dam in the Montana badlands was one of FDR's most ambitious public works.

The first Russian Orthodox church in North America and an Alaskan landmark.

Over 600 acres of idyllic open grassland honor Nebraska’s georgic storyteller.

This statue is an ode to an iconic roadside advertisement popularized during the 1970s.

Between Missoula and Spokane, a family-owned travel center has an unusual museum in the back.

One of the largest carillons in the world, this giant instrument has 67 cast-iron bells played by a keyboard.

Taxidermy and miniatures come together to create this unique museum.

This museum located in the "Corn Cob Pipe Capital of the World," chronicles the history of cob pipe.

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.

Abraham Lincoln's likeness rests at the top of this giant totem pole.

At the time of its completion, it was the tallest dam in the world.

Hundreds of samples of "Devil's Rope" hide in a defunct vintage elevator.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

This sky-high radio mast is formerly the tallest man-made structure in the world.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

A classic carnival ride that was carved to be untouchable.

This town is home to the world’s largest arch constructed entirely of elk antlers.

An obelisk commemorating Lincoln's role in connecting the coasts.

This was the first homestead registered after President Abraham Lincoln signed the Homestead Act into law.

The ruins of Theodore Roosevelt's beloved ranch stand in a forgotten corner of a national park named after him.

What do a giraffe, an elephant, and reasonably priced steaks have in common? This roadside restaurant filled with exotic taxidermy.

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