This massive home was constructed by one of the greatest conservationists in Colorado history.

A remote sandstone plateau named for a legendary cattle rustler.

In the early 1900s, hundreds of Black Americans found opportunity in this now-abandoned rural community.

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

An ADA-accessible trail and deck offering stunning views of Colorado’s Mount of the Holy Cross.

A unique arch graces the Dolores River Canyon near the Hanging Flume.

The giant stump of the once towering cottonwood where Ute people held tribal meetings.

The decaying ruins of a failed mining company’s water diversion project cling to the side of a desert canyon.

Paleoamericans built these ancient walls high in the Colorado Rockies as part of an extensive hunting system.

This old train trestle and collapsed tunnel once allowed the railroad to negotiate the steep slopes of the Colorado Rockies.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

Antique automobiles, phonographs, organs, and farm equipment.

The remains of a World War II-era Japanese American internment camp dot a windswept Colorado hill.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

A prehistoric rock shelter that's literally in someone's backyard.

A coal fire has been burning underground here since 1896.

One man's love for East Coast diner culture brought an entire eatery all the way from New Jersey to Colorado.

Neal Cassady may still have an open tab at one of Denver's oldest watering holes.

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

Two creeks flow out of either end of this canyon in opposite directions.

Hidden high on a remote mountain peak is a humbling and mysterious Vietnam War memorial.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

The remains of an early 1900s dude ranch that operated until the 1970s.