Russia (Asia)...
Best Group Tours and Private Tours

Russia is (by far) the largest country in the world. Population density outside the few major cities (Moscow, St. Petersburg) is very low. Siberia is almost "empty". The best way to see the place is either by a) taking a really, really long vacation or b) taking the Trans-siberian Railway fro Vladivostok to Moscow covering 5 time zones and 11000 kilometers. The Asian part of Russia includes Siberia, Kamchatka and lake Baikal.