http://travel.nationalgeographic.com/travel/top-10/trains/
http://www.travelandleisure.com/articles/worlds-most-scenic-train-rides/2
http://www.railplus.com.au/great-rail-journeys/
http://www.readersdigest.ca/travel/world/world-s-10-best-train-journeys
http://www.telegraph.co.uk/travel/726754/The-10-greatest-railway-journeys-in-the-world.html