A Train Adventure....where would you go?

I absolutely can't wait to plan a train adventure. This type of vacation looks so peaceful and serene. My ultimate train adventure would be one that would take me through the beautiful landscape of Switzerland. Out of all the places on earth, I think Switzerland is the most captivating.

The natural beauty of the mountains and the lush landscapes just leaves me in awe. My trip here would definitely be a 7 day trip to just absorb all of what Switzerland has to offer. Let me know what would be your dream train adventure.....