There are some train-routes that became legendary during the past. In former times they were real means of transportation for long-distance travel. Nowadays their main purpose is tourism. In some countries (e.g. Russia) they still are important parts of their transport systems.
... Pryor[?], (c 1785-1850), US explorer
Pytheas, (died 1984), Greek explorer who visited Britain and other north and northwest European countries
R
John Rae, ...