Check out the Gazette newspaper on Fridays (www dot gazette dot com) they have a GO section when lists all kinds of local activities & events. Also once a year they do a best of the Springs list which is listed on the website year round.
Other recommedations;
Cave of the Winds
Mollie Kathleen Gold Mine Tour (near Cripple Creek)
The view alone from the top of the mountain right above Cripple Creek is worth the drive!
Bigg City (Also known as Mr. Biggs. Huge indoor kids play place, a great thing to do when the weather is cold)
The Colorado State Fair in Pueblo (end of Aug, beginning of Sept) is a must. However count on it being an all day event, & remember it is always hotter in Pueblo!
Flea Market (on Platte, just West of Powers)
Cheyenne Mountain Zoo (lots of stairs & walking up hill)
Pikes Peak Cog Railway
Anderson Farms (fall festival) www dot andersonfarms dot com
Downtown Aquarium (Denver)
Territory Days (Memorial Day weekend in Old Colorado City)
Colorado Balloon Classic (Labor Day weekend at Memorial Park)
Garden of the Gods
Six Flags Elitch Gardens (Denver, also has a waterpark)
I'm sure there are plenty more that I am forgetting!
