I am planning to travel to Bergen from Oslo 8am by train and come back at night at 23pm. is it wort it?

I heard it is one of the most scenic train journeys in the world. Is it a better idea to travel somewhereelse from Oslo. It will be a day-trip.

Well, it's a very short time to visit Bergen but I can recommend you the tour called "Norway in a Nutshell", this trip includes traveling by train, bus and boat and takes you through some of Norway's most beautiful fjord scenery. A round trip ticket from Oslo costs around $ 400 USD, not cheap but it is definitely worth it!

You can find more information at: http://www.norwaynutshell.com/default.asp