Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A tunnel with windows, so you don't miss out on the impressive views.

The fifth-longest natural arch in the world, and the longest outside China.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A house carved into a rock in the 1940s.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

One of the first intercontinental ballistic missile sites in the United States.

The cliff and rock formations are made out of Sioux Quartzite.

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

This Wild West attraction is alive with glitching automatons.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

A fitting attraction for the corn capital of the world.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

A roadside collection of over-sized iron creations that are a bit more macabre than most.