As of 2006, you can take a 48-hr. ride between these 2 cities, with a stretch on the world's highest railroad
clues - Season 24 [PAR] Jul 25, 2008 ... #5512, aired 2008-07-22, WORLD LEADERS: Born in Kiev & later a U.S. ... 
COUNTRIES: Of the world's 10 largest countries in total area, the 2 ...... #5302, 
aired 2007-10-02, TRAINS: As of 2006, you can take a 48-hr.