Iceland & Switzerland

[Tounis]

I see this thread now. Sorry for not answering earlier. Obviously, I know some places that are worth a look. I'll think about it and make some suggestions later when I'll have the time to write a proper post.

Zermatt is a good choice no matter the season. I may be biased, but it's probably the most scenic view in the Alps. While it's only an hour and a half from my place, I've only been there twice, once in Summer and once in Winter. Both were great. The train to the Gornergrat and the cable car to the Klein Matterhorn, with the top station inside the mountain at 3821m (more than 12'500 feet if I'm not mistaken) are two unforgettable experiences. You'll easily find a few great places (especially lakes) to take picture of the Matterhorn, but don't forget to look in every direction. There are great mountains everywhere.
If you go there, another interesting place to see is the Aletschgletcher, the biggest and longest Glacier in Europe. It's not far from Zermatt.
The Titlis is indeed easily accessible from Luzern, as is the Pilatus, another great mountain with a very special train climbing on it (the base station is in Alpnachstadt).
I think train is a great way to go to most places. Our train network is dense, and we're using it a lot (I think only the Japanese use it more than us).
Feel free to ask any questions, I'll answer as well as I can, or ask my father who knows a lot more than I do.

Edit : I think you should try to see the Lavaux region (near Montreux and Vevey). It's on the UNESCO World Heritage list, as is the Aletschgletscher region. The view on the Geneva Lake and towards the Rhone Valley is fantastic, and the classic picture with the Chillon Castle and the Dents du Midi in the background is easy to take.