No matter how long you've lived in the great state of Colorado, chances are you still haven't uncovered every last secret to be discovered in the Centennial State. To provide a little inspiration for your adventures and explorations, we've compiled a list of the 12 best-kept secrets in Colorado. From beautiful drives to historic haunts, this list is bound to keep you busy exploring all that Colorado has to offer.

1. Last Dollar Road

Located between Telluride and Ridgway, Last Dollar Road is quite possibly the most beautiful route in the country with its windy roads, stunning views and spectacular colors.

2. Lizard Lake (Carbondale)

This isn't a painting -- Lizard Lake is very real, very quiet and anxiously awaiting your visit!

3. Space Foundation Discovery Center (Colorado Springs)

Learning about science has never been more fun than at the Space Foundation Discovery Center! Learn about space through hands-on exhibits, robots and their unique Science On a Sphere globe.

4. Rifle Falls State Park

Did you know that Colorado is home to dozens of waterfalls? If you're on the hunt for that perfect fall, look no further than picturesque Rifle Falls State Park and its triple 70-foot waterfall.

5. Dunafon Castle (Idledale)

Anglophiles, rejoice! Colorado is home to several gorgeous castles, including Dunafon Castle.

6. Fulford Cave (Basalt)

Adventure awaits as you venture deep into the walls of Fulford.

7. Movies Under the Stars

Looking for family-friendly activities in Colorado? During the summer, different parks around the state offer free outdoor movies on a big screen! Bring your loved ones and a picnic dinner for a fun movie night.

8. Conundrum Hot Springs (Aspen)

Why fight the crowds at popular tourist hot springs when you can melt all your stress away in Conundrum Hot Springs, a warm pool of perfection?

9. The Crystal Mill (Marble)

Walk, ATV, or bike your way to this historicmill and its incredible surroundings.

10. Handies Peak Wilderness Study Area (Lake City)

The pristine pools of blue, mighty peaks and lush vegetation are something you have to see (in person) to believe.

11. Wheeler Geologic Area (Creede)

Wheeler Geologic Area really "rocks" with its unique layers of volcanic ash, vast trails, and out-of-this-world scenery.

12. Terror-Dactyl (Manitou Springs)

If crawling through caves or gazing into clear blue water just isn't your thing, why not consider jumping off a 200-ft cliff and free-falling at 100 miles-per-hour during your visit to the Cave of the Winds? Click to learn more about how Terror-Dactyl will take you on the ride of your life.

Do you agree that these are some of the best-kept secrets in Colorado? Are there any little-known destinations that you would add to the list? If so, we'd love to hear from you -- join in on the conversation by leaving a comment below. And now that you've worked up quite the appetite exploring Colorado's many hidden gems, be sure to stop off at one of these little-known restaurants in the Centennial State.