Oslo has the only metro network in the world that drops you inside a thousand-square-kilometre forest on a city ticket. That single fact explains the place better than any list of museums.
The T-bane is five lines — T1 blue, T2 orange, T3 purple, T4 green and T5 yellow — with 101 stations over 85 kilometres. In the centre they share a common tunnel, so between Majorstuen and Tøyen any train will do.
Outside that tunnel each one goes to its own branch, and there the number matters. It is the same scheme as Stockholm: shared trunk in the middle, fan on the edges.
What makes Oslo special is the T1: it climbs the hillside to Frognerseteren, 470 metres up, through the villa district, and leaves you at the door of the Nordmarka, the forest where the city skis, runs and walks. It is urban metro that ends on a footpath.
For the centre you barely need it: Oslo is compact and from the Royal Palace to the Opera House is a twenty-minute walk along the fjord.

Holmenkollen and the forest included, which almost nobody puts on a list and is the best thing the city has.
Everything above you can do on your own with this page open. This other thing we build for you: the same idea as always — you do not know what you got until the day before — applied to Oslo.
You choose where you fly from and where you are going, and we tell you what the adventure costs and roughly what getting there would cost. Flights and accommodation you book yourself: we are not a travel agency and we do not want to be.
Ruter runs it and the same ticket covers metro, tram, bus, local train and some fjord ferries. Almost everything a visitor wants is in zone 1.
With two journeys a day no pass is worth it. But if you are going up to Holmenkollen and Frognerseteren on the same day, the 24-hour pass already pays for itself on that alone.
If you want it line by line — which stations each one has, what is around every stop and how to work out a specific journey — we have all of it at our guide to the Oslo T-bane. It is one of the sites we publish ourselves, and it is free.
Gardermoen is forty-seven kilometres out and two trains do the same job at very different prices. Watch out for Torp and Rygge, sold as “Oslo” and more than a hundred kilometres away.
Two full days cover the centre, the Opera, Vigeland and a museum. With three you fit all of Bygdøy plus a trip up to Holmenkollen or the forest, which is what really sets Oslo apart from other capitals.
A single zone 1 ticket is 42 NOK and lasts 60 minutes with transfers. The 24-hour pass is 113 NOK, the 7-day 335 NOK and the 30-day 871 NOK.
Only if you are going to chain three paid museums in one day, and it does include transport. If your plan is more streets, fjord and forest — which is what we recommend — a plain transport pass is cheaper.
Yes, and it is the best thing about the network. Line T1 ends at Frognerseteren, 470 metres up and right at the entrance to the Nordmarka. On a normal city ticket.
Gardermoen (OSL), the one connected by train in twenty minutes. Torp and Rygge are sometimes advertised as “Oslo” but they are over a hundred kilometres away and the transfer eats the fare saving.
This is what we do when we travel. The other thing we do is build adventures where you do not know which activity you got until the day before.