At an elevation of about 12,000 feet, La Caverna del Oro, otherwise known as Spanish Cave, is the highest cave in the nation - and some would say it's haunted.
One of the most popular attractions on Colorado's Front Range is located just outside of Colorado Springs, the famous Cave of the Winds. An abandoned entrance to the park looks apocalyptic.
An exciting mission for adventure seekers in Colorado could be heading out to locate a hefty treasure that remains buried near Horsetooth Reservoir in Fort Collins.