For 14 years, this former stray dog greeted every train passenger that arrived in Fort Collins.

Let Ouray’s tallest waterfall sweep your breath away on a dealer’s choice of scenic hikes.

Explore a wealth of fossils in one of the most prolific dig sites in North America.

An unexpected alley with light shows and nature views.

Stay in a luxury cabin or refurbished Airstream in this former mining camp-turned-retreat.

The first mountain submarine had its initial and last voyage in 1898.

These towering cliffs crystalize each winter, forming sheer walls of ice that are open for climbing.

A multicolored mineral mound dribbles piping hot spring water right off the side of a highway.

A short tunnel built straight through a magmatic dike.

Colorado's oldest church is now home to the largest handmade adobe labyrinth in the world.

This Rocky Mountain mansion was the luxurious home of the authoritarian leader of a company town.

This shrine is an ode to the region's rich Hispanic heritage.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

This depiction of the earth mother welcomes new life into Aurora Highlands.

Meet Rita the Rock Planter, one of Danish sculptor Thomas Dambo's enormous wooden trolls.

Once named the “world’s oldest gas station” due to its unusual construction material.

The remnants of a 1970 plane crash remain high in the Rocky Mountains.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

One of the few surviving Panama Canal steam shovels stands outside a tiny Colorado mining museum.

Take a self-guided tour through one of Colorado's most elevated mining districts.

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

This enigmatic building features numerous architectural styles.

It takes a nine-mile hike to reach these hot springs, but weary hikers are rewarded with stunning views and a warm soak.