Trans-Siberian railway is the world's longest and the most famous train route that goes through Russia. It crosses the whole continent, starts in Moscow, passes through the European Russia, crosses Urals mountains (which separate Europe and Asia), continues into Siberia's taiga and steppes, and finishes in Vladivostok — the Russian Far East coast on the Pacific Ocean.
The Trans-Siberian is an immense route: along more than 9000 kilometers of its length you will see different landscapes, meet many different people and cultures (especially, if you hop off the train at few points), experience magnificient Siberian Baikal lake, and just enjoy the trip in the train.
It takes more than six days to travel along the whole Trans-Siberian, so it is recommended to make stopovers along the way — like this your trip will be much more interesting also.
The Blue Mosque is one of the most prominent landmarks of Istanbul, especially when viewed from the First Hill or from the Asian shore of the Sea of Marmara. It is very impressive with its beautiful domes and semidomes, nice courtyards and six slender minarets.