While Barcode is something of a sight of itself (along with its interesting Kunsthall), there's really only one thing to see here, and that's the Oslo Opera House.
The good chain hotels that surround Central Station are a very close walk from the Opera House, or just across the train tracks from Bjørvika.
Bjørvika and its Barcode heart have a number of interesting, even edgy, places to eat, though all tend towards the top end. Across the bridge, this area is also home to Norway's finest restaurant, Maaemo.
Drinking & Nightlife
There's not a lot of dive bars in this new development but you'll do quite well if you're after a well-chosen French or Italian wine at one of its upmarket restaurants. There's also a great little spot for a beer out by the Sørenga Seapool.
There's an increasing number of shops opening in the Barcode and Bjørvika area, much of them designed to cater to the neighbourhood's office workers and new residents.