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

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

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

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

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

This marker identifies the location where three states converge.

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

Happen to come across a dead eagle? Send it to America's official dead eagle warehouse.

Antique automobiles, phonographs, organs, and farm equipment.

Historic, 19th-century wagon wheel ruts cut into soft volcanic ash.

The site of a defunct mill, that once supplied marble for the construction of the Lincoln Memorial.

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

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

This restored farmhouse is a time capsule of a 19th-century Colorado homestead.

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 now-abandoned outcrop is an important Native American spiritual site, overtaken by European settlers and mining pollution.

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

Open-air cremations in Colorado's self-proclaimed spiritual mecca.

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

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

Victorian "Fancy Craft" Hair Wreaths and Relics.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

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

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