The only continuous land route between Western Europe and the Pacific Coast of the USSR, the Trans-Siberian Railway covers nearly a hundred degrees of longitude, seven time zones and 5900 miles in a journey lasting 192 hours and 35 minutes.
The Trans-Siberian is the big train ride. All the rest are peanuts.
Terrorised by awesome Soviet conductress, hindered at every station by officialdom and bureaucracy, and hampered by the lack of palatable food and drink, Newby's party nonetheless heroically completed the journey from Moscow to Nakhodka in 1977.