Fish market.  Fresh fish seems to arrive in Bergen on a daily basis because the town's fish market is open every day.  This market consists of a part which is in open air (from May till September included) and part that is covered (Mathallen, whole year round).  Here you can find all the good things that the sea can give: shrimp, crab, lobster, salmon, cod,... but also other specialities from the area such as reindeer meat in all different forms (sausages, salami, bacon,...).  No need to torture your taste buds because you can also eat here.  You will have to admit that day fresh fish has an exquisite taste.

Bergen Aquarium.  Bergen has its own aquarium (Akvariet) where you cannot only get acquainted with the inhabitants of the area but you will find also more exotic specimens.  Sharks cruise over your head while you walk through the shark tunnel and amateurs of spiders, snakes and lizards will discover here a nice collection of those too.  During the feeding sessions of the pinguins (amongst others) you are provided with an interesting explanation by the carekeepers.  The sealions show their most playful side during their show.  A tip for people who are travelling with kids.
More info on www.akvariet.no 

Fløybanen.  Mount Fløyen is one of the mountains that surround the town.  From the top of Mount Floyen you have a beautiful panoramic view on the entire town.  A small train (the Floybanen funicular) takes you in minutes on the site.  In 1918, the first train drove up the mountain; more modern models have now taken up that task.  Note that this is one of the most popular touristic attractions in Bergen, so you should take into account that it can be quite busy here in the high season.  This is a recommendation for clear wheather.  In 2017 the climb of this mountain was the finale of the UCI world cycling championship.  Over 3.5 km a height difference of 300 m has to be conquered (with the bicycle of course, not with the funicular).
More info on www.floyen.no

Statsraad Lehmkuhl.  The Statsraad Lehmkuhl is an almost 100 m long three mast barque that has its anchorage in Bergen.  The ship was built in Germany in 1914 and was confisquated by the English after the First World War.  Norway bought the sailing ship from the English in 1921 and used it as a training ship till 1967.  Nowadays, the Statsraad Lehmkuhl Foundation ownes the ship and participates with it in different sailing contests (such as the Tall Ships Races).  They also organize shorter excursions and those who are interested can join.
More info on www.lehmkuhl.no

Fjord excursions.  From Bergen you can make several excursions to the fjordlands north and south of the town.  To name just a few: Sognefjord, Nærøfjord, Aurlandsfjord, Hardangerfjord, Sørfjord of Osterfjord.  There are different shipping companies operating from Bergen (Norled, Fjordtours, Rodne,...) that offer such cruises.  It's advised to check beforehand which excursion you are interested in because each cruise has its own attractions and sights.  The tourism office can help you out if necessary.
More info on www.visitBergen.com

Bergen Science Center.  More info on www.vilvite.no

Ulriken643.  Cable car to the highest mountain around Bergen (hight 643 m) in case you want something a bit more challenging than the Floybanen.  Located slightly outside the town center.
More info on www.ulriken643.no