Sure there are nice places to fly there, but I don't know the area to well. If you get to Trondheim, it should be excellent to fly from "Festninger", would get you nice view of the city and of Nidarosdomen.
Beware of the Vaernes airport, the no-fly zone is pretty large. If you use the Airmap App on android, you'll get a better idea. Loads of farmland, but if you go inland, you get some nice scenery.
Thanks for the heads up. Those places were awesome. Here's a quick pic I took. I have so much more video of Nidaros cathedral and Kristiansten Fortress!!