Thousands of years ago, Indigenous people painted images onto these canyon walls that are still on display today, provocative, mysterious, and enduring reminders of the people who lived here long ago.

Check out a hidden collection of vintage neon signs.

This memorial pays homage to Pueblo's four Medal of Honor recipients.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

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

It is the only marker for one of the most famous hate crimes in American history. There are no other memorials for him in the entire state.

A multiversal transit station located right below a highway interchange.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

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

This Moab institution functions as both a rock store and a small natural history museum.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A mural of the Virgin of Guadalupe painted on the rock wall by canyon's religious namesake.

Canyon walls shrouded in ferns.

A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

The start of the group that straightened the teeth of a nation.

A renovated hotel is bringing new life to a nearly-abandoned mining town in Colorado.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

A tunnel of hardened lava along Maui’s famous Road to Hana.

The famous aviator's final resting place is a study in natural beauty.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."