Monday's Riddle! Natural Harmony...

Here's the riddle. Can you guess the theme this week? Here's a hint- It's one of the best outside places to experience wide open spaces, but only on the inside - lol! Good luck! ~ F

I am a place of pure, natural beauty, where people can feel their ultimate duty. In the wake of disorder, comes miraculous scenes, all co-existing in the colors of dreams. Bringing clean air and a bounty of food, my settings will shift by the tone of Earth's mood. Deciduous turns, while coniferous stays, hence a vast arena of many different ways. A lively canopy covers it all, whether it be summer or winter, spring or fall. Choose a path, and walk by my stones. Breath me in deep while you rest your bones. 

Where are you?  

I already gave you a clue!