I was in Oslo for a seminar not long ago and stayed at the Grand Hotel, a well known hotel in the center of the city. In the morning I had breakfast in their cafe, and was told by a seminar visitor that this was the very cafe that Henrik Ibsen, the famous author, came every day for 9 years. Henrik Ibsen is considered the father of modern theater, scandalous in his day. He's considered the greatest playwright since Shakespeare.
Here's the hotel, and an interesting back stairwell from the pub.