On cruise day 3 we arrived in Istanbul where the ship was docked overnight. Istanbul, which also has a fascinating history, is a divided city in that part of it lies in Europe, while part is in Asia Minor, separated by the Bosphorus.   Istanbul is the largest city in Europe, and as our guide told us, among the world’s most populated city within city limits with an estimated 11 million people. Moreover the actual population is probably even larger than that recorded by census, as many residents return to their home towns for census day and are not counted as residents in Istanbul.