Having just completed Norway, some feedback.

Trips
I made two trips to Norway.

1 - Bergen, Urnes, Naeroyfjord - May
Thursday Hamburg => Bergen => Solvorn (Ferry + Bus)
Friday Solvorn <=> Urnes (Ferry + Bike)
Saturday Solvorn => Flam => Naeroyfjord => Flam => Bergen (Bus + Ferry + Bus + Train)
Sunday Bergen => Hamburg (Flight)

Note:
* Arriving pre season meant that loads of hotels and restaurants were not opened.
* Be sure to check the ferry schedule from Solvorn to Ornes, especially outside of season.
* Flam had a huge influx of cruise tourists the day I visited. Probably less of a concern during Corona.

2 - Roros, Vega Archipelago, Lofoten, Alta, Rjukan - August
Friday Hamburg => Trondheim (Flight)
Saturday Trondheim <=> Roros (Train)
Sunday Trondheim => Brønnøysund (Train, Bus)
Monday Brønnøysund => Vega Island => Brønnøysund => Bodø (Ferry, Bike, Ferry, Flight)
Tuesday Bodø => Lofoten
Wednesday Lofoten
Thursday Lofoten => Tromsø (Flight)
Friday Tromsø => Alta => Oslo (Flight)
Saturday Oslo <=> Rjukan (Svein and Randy)
Sunday Oslo => Hamburg (Flight)

Sites Ranked

Great (4-4.5)
West Norwegian Fjords - Amazing and well worth the trip to Norway.

Good (3-3.5)
Bergen - Loved the Northern Hanseatic town.
Urnes - Who wouldn't love this stave church on the fjord
Rjukan - Huge consistent, industrial site. Amazing to see how it all fits together.

Okay (2.5)
Alta - Ranking this lower than average. It's great to see how far humans came. But I liked Tanum better. Hard to explain why.
Vega Archipelago - Exemplary island landscape.
Roros - Wooden industry town.

Below Average:
Struve - General complaint with Struve, should have been an intangible site. Too little tangible remains left. I climbed Lille Raipas in Alta, which gave a nice view of the area.

Tentative and Aspiring:
* Lofoten would easily be Norway's second best WHS, probably a mixed one. Great nature and the fishing tradition.
* We visited Heddal Stave Church. Should be inscribed, too. Not sure if Urnes should be turned into a serial nomination, though, as I like that it makes you travel off the beaten path.

Costs
Hotels are surprisingly cheap. I think you can get around with 60 EUR per day (or lower). Public transport and flights are also reasonable priced. The main cost driver is everything involving service. Restaurants and bars will cost you dearly. Beers go at around 10 EUR. Fast food dinner at 20 EUR. Good food way more. There are cheap options (supermarkets, 7 Elevens), but this means compromising on quality. Alternatively, you can cook on your own. If you arrive by car, best option is to bring all the food you need.

Getting Around
Intuitively, you would think that driving is the best option. First things first, maps skew to the poles so distances as seen by the naked eye are too small. In total, Norway stretches 1600 km North to South. Add to this that Norway has loads of fjords and mountains, so you can rarely travel a straight line and may need to take a ferry here and there. The many tunnels and bridges Norway has built help a little, but a general speed limit of 80km/h means you travel slowly in any case. Also keep in mind that the main route going North (E6) is more inland (to skip past the fjords), while most major towns are on the coast. E.g. Bronnoysund is 1h from the E6. In total, a trip from Oslo to Alta at 2000km stands at 27h.

One last thing to consider re driving in Northern Norway is that it does not naturally lend itself to driving a circle, at least as long as you stay in Norway. North of Trondheim, it's more or less down to one major road (E6) running all the way to Alta. Only viable option (before Corona) was to drive back via Sweden. Restricting yourself to Norway, you have a to make a choice between driving long distances the way up and then hopping back with smaller day trips. Or continuously driving medium distances. The option of a one way rental is prohibitively expensive.

If you don't want to drive, you are down to the following options:
* Trains run all the way North to Bodø. Their schedule is not frequent, though.
* Several express ferries exist, e.g. from Bergen to Sogndalsfjøra or from Bodø to Sandnessjøen.
* Hurtigruten is the touristy option. However, it's pricey, really slow, and the arrival/departure times are rather arbitrary. I had one connection where the boat would leave Brønnøysund at 2 a.m.
* Wideroe is a local airline that offers a sort of commuter plane with plenty of stops. Travel times are short and prices very reasonable. I used them extensively on my second trip as it's simply by far the fastest option.

A good resource for buses, trains and ferries is en-tur.no. Be sure to check your concrete travel day, as schedules may change. Do not assume that the bus/train/ferry will run at the same time on Tuesday, that it ran at on Monday. Generally, all parts of Norway are connected, but frequencies can be low (daily).

One last word of advice: Saturday is the enemy travel and planning wise. All public transport options are reduced and it's really hard to get in and out of places. If you can, try to stay in the same place.

Local authorities in south western Norway (Stavanger) wants the first oil riggs on the list can Norwegian tv news tell us
https://www.nrk.no/rogaland/mener-condeep-plattformene-i-nordsjoen-horer-hjemme-pa-unescos-verdensarvliste-1.15964684

There have been some talks about Norway lately and about how to get to Urnes by public transportations. Since I'm on a bus passing by Urnes right now (without stopping) traveling south-west, I'm inclined to talk about how I got there in 2002 in a day trip from Flam by bus and then some.

After arriving from Oslo by train, I stayed at a hostel or a DNT hut in Flam for 2 nights before taking a boat through the Narrow Fjord to Gudvangen on the 3rd day.

On the 2nd day I took a bus from Flam to Sogndal and another bus toward Lom. I got off the bus near Solvorn on Road 55 and walked 2 km to Solvorn to catch a boat to Urnes. It was early in the afternoon, as I remember having lunch at a burger stand in Solvorn while waiting for the boat.

After admiring the Urnes Stave Church, I met a Norwegian woman on the boat back to Solvorn who was driving south-west toward Sogndal and asked her to give me a ride. I don't remember where she droped me off, but it must have been Sogndal, from which I took another bus back to Flam later in the afternoon.

Now I don't remember how I was planning to come back from Solvorn to Sogndal if I didn't meet that woman. Today there are 6 buses between Sogndal and Gaupne per day. Back in those days I just believed the way will open up if you seek.

This trip today has been my 6th trip to Norway and 2nd hiking trip to the Jotunheimen National Park where I have walked for 88 km so far. It will be my 4th time in Sogndal when I arrive soon, which is a transportation hub. During my 2nd time in Sogndal I also visited another Stave Church in Borgund, so called the most distinctive and photogenic Stave Church in the world. All in all I have seen 7 Stave Churches (Oslo, Lom, Urnes, Borgund, Hopperstad (from ferry) , Eidsborg (from bus) and Heddal) in Norway and the one in Poland, but not the one in Germany.

The websites to use for bus and train in Norway today are:

vy.no
entur.no

Some movement at the Viking Ship Burial Mounds, which are now recommended to be put on the Tentative List:

https://www.vikingtidsmuseet.no/english/news/viking-heritage-recommended-unesco

The seven monumental ship burial mounds included in the recommendation are Gjellestad in Østfold; the Borre mounds; the Oseberg mound and the Gokstad mound in Vestfold; Storhaug in Rogaland; Myklebust in Vestland; and Herlaugshaugen in Trøndelag.