We were early in the season so the archipelago did not particularly call, particularly as we knew we should pass through on our way to Turku. That voyage is covered in another journal so this one is entirely land based.
Obviously guidebooks tend to start with the old city and thus it is no great surprise that, although it more than merits a stroll and a look around some of the buildings and museums, it's now something of a tourist trap. This applies particularly to the shops.
On the other hand I can find no negative points to make about the Vasa museum. It's by far the best museum of this type which I have ever seen and I am only sorry at my own stupidity in not realizing that photography is allowed! - until it was too late.
The Skansen outdoor museum is very good but virtually every square centimeter was covered in scouts when we were there. It's a bit of a niggle but the mixture of outdoor museum and zoo does not quite come off for me and I prefer the equivalent museum in Oslo - but everything is relative and I enjoyed Skansen a lot.
Quick Tips:
The 20th century Stadshuset was the piece of architecture that thrilled me most. I am not a modernist in architectural tastes, and I found this imaginative use of modern materials and shapes to enhance some very traditional designs quite outstanding.
Two slightly less known places that we much enjoyed were Prince Eugen's museum on Djurgården and the Millesgården, both of which will have their own page here.
As for museums, you can't see 'em all and we had no cause to regret having chosen the Medeltismuseum [middle ages].
Best Way To Get Around:
The metro is fast, frequent, and efficient but of course cuts down on views; we became geared to it as we needed it to get to our hotel. I am sure buses might be a better bet for anyone staying more centrally.
Having one main station, the central metro station and the bus station for outside the city all pretty well together is extremely useful.