Under the Ottoman Empire, the pious cared for cats through local charitable foundations.
Dogs have also been very much a part of the city fabric since Ottoman times.
There are many weather proof cat boxes in door ways, green areas and other street areas. Throughout the city you will also see homemade water stations and biscuit mounds.
In Karaköy, there are even small camp areas where cats and dogs can go to seek shelter and food.
Tagged or tipped dogs have been inoculated and neutered by an animal welfare organisation. They are then tracked and checked.