Moscow by night, and city tour at day incl. Kremlin
Kazan, including the Kremlin
Ekaterinburg
Novossibirsk
Irkutsk (1 overnight in hotel)
Lake Baikal (short cruise and barbecue on the shores of Lake Baikal)
Ulan Ude
Ulan Baatar (one overnight in hotel or yurt)
National park Terelj in Mongolia
Beijing (2 or 3 overnights on hotel depending on eastbound or westbound), incl. Great Wall, Tienanmen Square, Forbidden City