Gamle Bybru (Old Town Bridge) is by far the best bridge over the river. I used to be able to lift for ships, but it is now fixed, although they have retained some of the workings of the lift purely for decoration.
Here's the info board which shows the layout of the fort, sadly the vandals have been at it.
This view is looking towards the Norwegian University of Science and Technology which is an impressive building.
And this shot looks towards the St Olav Hospital complex, which I've become all too well acquainted with in recent months.
The coast on the other side of the fjord, in the distance, is about 20km away.
And, then back into town across that nice bridge again, here's a closer shot of the arches on it.