The first time I visited Boulder I took a drive up to Estes Park and thought the Rocky Mountain National Park. It's stunning up there, although I did get caught in a thunderstorm, which was both terrifying and spectacular.
I'm right on the opposite side of Germany in Saxony. We have the Saxon-Switzerland national park nearby, which is a beautiful region popular with hikers, climbers, etc., but with it being a national park, flying drones in/over it is completely banned. I think that's fair enough and people should be able to enjoy nature in peace, but I can't help thinking how awesome it would be to fly there.