Whether it's a hillside glowing bright yellow with fall aspen leaves or the jagged peaks of the San Juans covered in snow, the scenery steals the show in Colorado. Almost from the moment you set foot in the state, the mountains are either surrounding you or are visible on the horizon, and they're constantly presenting new vistas. Though skiing and hiking are undeniably great ways to appreciate the peaks, they're hardly mandatory. Whether you're driving on a freeway or even walking on a busy Denver street, you will be ogling the alpine scenery.