Istanbul – in pictures To coincide with the launch of our Istanbul city guide, we've chosen some of local photographer Ufuk Sarisen's best images Tweet April 23 National Sovereignty and Children's day celebrationsPhotograph: Ufuk Sarisen Photograph: <a href="http://www.ufuksarisen.com">Ufuk Sarisen</a> /other A ferry on the BosphorusPhotograph: Ufuk Sarisen Photograph: <a href="http://www.ufuksarisen.com">Ufuk Sarisen</a>/other Fishermen on Galata docks Photograph: Ufuk Sarisen Photograph: <a href="http://www.ufuksarisen.com">Ufuk Sarisen</a>/other A mosque in Galata, on the European side of the cityPhotograph: Ufuk Sarisen Photograph: <a href="http://http://www.ufuksarisen.com">Ufuk Sarisen</a>/other A game of Okey in the Emırgan neighbourhoodPhotograph: Ufuk Sarisen Photograph: <a href="http://http://www.ufuksarisen.com">Ufuk Sarisen</a>/other Ortakoy Mosque on the yearly Ataturk youth and sports dayPhotograph: Ufuk Sarisen Photograph: <a href="http://www.ufuksarisen.com">Ufuk Sarisen</a>/other Simit is the ubiquitous ring-shaped bread covered with sesame seeds, found on most Istanbul streetsPhotograph: Ufuk Sarisen Photograph: <a href="http://www.ufuksarisen.com">Ufuk Sarisen</a> /other Galata TowerPhotograph: Ufuk Sarisen Photograph: <a href="http://www.ufuksarisen.com">Ufuk Sarisen</a> /other Whirling dervishes at Galata MevlaihanesiPhotograph: Ufuk Sarisen Photograph: <a href="http://www.ufuksarisen.com">Ufuk Sarisen</a>/other