There's more options for both indoor and outdoor activities in Colorado Springs and nearby Denver areas than could fit on one page, but here's a few highlights.
Garden of the Gods
1805 N. 30th Street, Colorado Springs, CO 80904
Stunning park with easy to walk paths and tons of photo opportunities
Cave of the Winds
100 Cave of the Winds Rd, Manitou Springs, CO 80829
Cave tours, zipline, and more
Pikes Peak
CO 80809
An adventurous high altitude option, can be driven or check out the cog railway. There are also options for hiking, canoeing, and kayaking.