While its Denver counterpart might be more popular, the Cheyenne Mountain Zoo in Colorado Springs is the most interesting Colorado zoo experience you’ll find. It sits about 6,800ft (2,073m) above sea level and features exhibits built into the mountainside. You can also feed the giraffes, ride an open chairlift over the zoo, walk through an aviary of free-flying birds and expect plenty of animal encounters.
Cliff Palace and Balcony House are ancient cliff dwellings that the ancestral Pueblo Indians inhabited in the 12th and 13th centuries. Located in Mesa Verde National Park, both are World Heritage Sites and National Monuments. Balcony House had forty-five rooms and two kivas (ovens), and it can only be accessed on ranger-guided tours. Tour participants must climb a thirty-two foot ladder and then crawl through a twelve-foot tunnel to access Balcony House.