The largest source of fossilized insects anywhere.

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

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

This super steep hike ascends 2,000 feet in less than a mile.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Colorado's only true geyser is hidden within the San Juan National Forest.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

In addition to over 80 vehicles on display covering over 100 years of motorcycle history, this free museum focuses on the people who ride and love these bikes.