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

A remote sandstone plateau named for a legendary cattle rustler.

The remnants of the base where US Army troops learned how to fight in extreme conditions.

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

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

A coal fire has been burning underground here since 1896.

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

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

This 19th-century ranch is being transformed into a residential library with thousands of books about the natural world.

This interpretive path lets you get up close and personal with dinosaur bones.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

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

It's easy to forget what century it is as you wander this rustic homestead.

A river runs through this remote valley in a very unexpected way.

Unlike most arches, this geological oddity formed in a volcanic dike.

A roadside attraction filled with an astounding array of gloriously wacky vehicles.

This sidewalk tribute honors Colorado's great culinary creation.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

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

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

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

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

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

One of few remaining antique carousels with stationary animals in the U.S.