I strongly recommend anyone living in at least a semi-touristic city to get a tour guide for your city and look around. Liekwise, get a list of museums, cultural galleries and other such things.

You can discover many interesting things you had no idea existed.

I did this in Montreal and discovered many little gems in the tourist area I had previously visited, including a lovely museum of the restored house of a 19th century politician. And I found many museums off the beaten track.