The old Bibliotec building is a fine one, in the traditional ornate style of the early 1800s. I walked in expecting a library, planning to do a little reading, but the library is now all modern and in new quarters.
The old building is a fine cultural center, art museum, and meeting place. When I was there, there was a show of reasonably priced local art, which I rank much higher as a gift than what is sold in the gift shops.
Also worth a look is the nearby fire station. Children might enjoy seeing the fire engines. If you are a firefighter, bring along items to trade: buttons, badges, t-shirts, etc.