I did the trans-Mongolian train (Beijing to Moscow through Mongolia). The first bit is well worth it. The back half (Irkutsk to Moscow) is days and days of unre

I did the trans-Mongolian train (Beijing to Moscow through Mongolia). The first bit is well worth it. The back half (Irkutsk to Moscow) is days and days of unrelieved boredom, with no stops longer than 10 minutes and no scenery.