The beautiful historical city Bologna is definitely worth a visit. There are loads of great things to see and do in and around the city to keep you busy for several days, that is if you want to. The great mix of historical sites in the city and the relaxing nature parks just at the outskirts of the city makes it a very good city trip destination. This in combination with the great food and vibrant city live will make sure you will have a pleasant stay.
The very good train and bus connections to cities nearby makes it also a perfect place to stay even longer. While staying in Bologna you could spend a day at the beach in Rimini, relax a bit in Po Delta National Park or visit the beautiful mosaic churches in Ferrara. Whatever you like there is always something nice to see or do in or near Bologna.
You can read the full article dedicated to "Bologna" (Dutch) here, by Erik Van Erp, founder of Around the Globe, the Dutch's largest travel community site.