A piece of John the Baptist in the American heartland.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

The narrow mountain road that carves a path between Florence and Victor is tied to ghost towns and ghost stories.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

A unique collection of drawings that represent Fremont Native American culture.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

The hallowed remains of a 900-year old Ancestral Pueblo great house.

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

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A fake mine that was made using real mining techniques which is also used as a community center.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

The site of the gruesome massacre—and maybe cannibalism—of five men, a tragedy that made Alferd Packer infamous.

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

This ghost town was once a cult-like religious utopian settlement.

A house carved into a rock in the 1940s.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

This marker identifies the location where three states converge.

This nearly abandoned town was once a thriving mining community until a series of fires.