Istanbul, the most crowded city in Turkey, is twenty-four live city in Turkey. The city is important part of the country with regard to economically, culturally and historically.
Istanbul is heart of the Eurosia which is composed of Europe and Asia continents. You can to use city ferry line to throw the bagel to the birds between these continents.
You can also watch the top video to see how is the life in Istanbul but it is not enough to understand it. Please watch the video high resulotion.