I just love trains, the countryside fleeting past seems to empty my mind of any disquieting thoughts and I find it very relaxing. It also has a lovely old world appeal that I think would make for lovely romantic honeymoons, especially with some of the luxurious touches that you can find on some of the best trains these days.
Orient Express in particular conjures up exciting images of a romantic getaway!
Take a look at a comprehensive selection here: http://honeymoons.about.com/b/2009/09/23/train-travel-blog-carnival.htm
