Hof is Akureyri's main modern cultural venue, set right by the harbour with a round, dark exterior that stands out against the town's low streets and mountain backdrop. It hosts concerts, theatre, exhibitions, conferences, and community events, so it is often the place to look when the weather turns or you want to see what northern Iceland is doing after dark.
The building is also useful as an orientation point: from here it is an easy walk to the church, the old centre, and the waterfront. For travellers, Hof is less a single must-see object than a practical cultural hub, but in a small city that makes it valuable. Check the schedule before assuming there will be something on.