I knew about trolls before I came because of the movie Troll Hunter. If you haven't seen it, rent it, buy it, steal it, do whatever you need so you can watch it. You probably won't like it, but I think it's a funny movie. Here is a picture from the movie

In Bergen there were lots of trolls
Ignore all the food and just look at the troll.
It's mine....Brian thinks it's creepy so when I get home I'm going to move it closer and closer to him everyday until one day he wakes up and it's sitting right next to him!
On top of Mt. Fløyen stands this beautiful thing
And if you decide to walk down Mt Fløyen there is a troll forest/path that you can take.
No troll trail can be complete without a troll bridge ......
or a troll under the bridge
It was very icy on the troll path