Photo: Wikimedia CommonsHalf fishmonger and half restaurant, Fiskeriet on Youngstorget is where Oslo goes for unfussy, properly fresh seafood at sensible prices. The creamy fish soup is the thing to order, closely followed by the golden fish and chips, all eaten at shared tables in a bright, tiled room. There are no reservations and locals turn up early, so aim to arrive ahead of the lunch rush or just after it to be sure of a seat.